build: merge release 5.1.0 into develop

* Also updates meta key in ApplicationError constructor to unknown type

Bumps [@babel/preset-env](https://github.com/babel/babel/tree/HEAD/packages/babel-preset-env) from 7.13.9 to 7.13.10.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.13.10/packages/babel-preset-env)

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Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 4.16.1 to 4.17.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.17.0/packages/eslint-plugin)

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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.859.0 to 2.861.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-js@v2.859.0...v2.861.0)

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* fix(deps): bump connect-mongo from 4.2.2 to 4.3.1

Bumps [connect-mongo](https://github.com/jdesboeufs/connect-mongo) from 4.2.2 to 4.3.1.
- [Release notes](https://github.com/jdesboeufs/connect-mongo/releases)
- [Changelog](https://github.com/jdesboeufs/connect-mongo/blob/master/CHANGELOG.md)
- [Commits](jdesboeufs/connect-mongo@v4.2.2...v4.3.1)

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* ref: use new client option

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Bumps [eslint-plugin-jest](https://github.com/jest-community/eslint-plugin-jest) from 24.1.9 to 24.2.1.
- [Release notes](https://github.com/jest-community/eslint-plugin-jest/releases)
- [Changelog](https://github.com/jest-community/eslint-plugin-jest/blob/main/CHANGELOG.md)
- [Commits](jest-community/eslint-plugin-jest@v24.1.9...v24.2.1)

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Bumps [libphonenumber-js](https://gitlab.com/catamphetamine/libphonenumber-js) from 1.9.12 to 1.9.13.
- [Release notes](https://gitlab.com/catamphetamine/libphonenumber-js/tags)
- [Changelog](https://gitlab.com/catamphetamine/libphonenumber-js/blob/master/CHANGELOG.md)
- [Commits](https://gitlab.com/catamphetamine/libphonenumber-js/commits/master)

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Bumps [@babel/plugin-transform-runtime](https://github.com/babel/babel/tree/HEAD/packages/babel-plugin-transform-runtime) from 7.13.9 to 7.13.10.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.13.10/packages/babel-plugin-transform-runtime)

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Bumps [@opengovsg/spcp-auth-client](https://github.com/opengovsg/spcp-auth-client) from 1.4.0 to 1.4.2.
- [Release notes](https://github.com/opengovsg/spcp-auth-client/releases)
- [Commits](opengovsg/spcp-auth-client@v1.4.0...v1.4.2)

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Bumps [@babel/core](https://github.com/babel/babel/tree/HEAD/packages/babel-core) from 7.13.8 to 7.13.10.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/main/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/commits/v7.13.10/packages/babel-core)

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Bumps [@sentry/integrations](https://github.com/getsentry/sentry-javascript) from 6.2.1 to 6.2.2.
- [Release notes](https://github.com/getsentry/sentry-javascript/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-javascript@6.2.1...6.2.2)

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Bumps [@opengovsg/mockpass](https://github.com/opengovsg/mockpass) from 2.6.5 to 2.6.6.
- [Release notes](https://github.com/opengovsg/mockpass/releases)
- [Commits](opengovsg/mockpass@v2.6.5...v2.6.6)

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…lidation (#1349)

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 14.14.33 to 14.14.34.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)

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Bumps [@sentry/browser](https://github.com/getsentry/sentry-javascript) from 6.2.1 to 6.2.2.
- [Release notes](https://github.com/getsentry/sentry-javascript/releases)
- [Changelog](https://github.com/getsentry/sentry-javascript/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-javascript@6.2.1...6.2.2)

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Bumps [connect-mongo](https://github.com/jdesboeufs/connect-mongo) from 4.3.1 to 4.4.0.
- [Release notes](https://github.com/jdesboeufs/connect-mongo/releases)
- [Changelog](https://github.com/jdesboeufs/connect-mongo/blob/master/CHANGELOG.md)
- [Commits](jdesboeufs/connect-mongo@v4.3.1...v4.4.0)

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Bumps [ngrok](https://github.com/bubenshchykov/ngrok) from 3.4.0 to 3.4.1.
- [Release notes](https://github.com/bubenshchykov/ngrok/releases)
- [Changelog](https://github.com/bubenshchykov/ngrok/blob/master/CHANGELOG.md)
- [Commits](bubenshchykov/ngrok@v3.4.0...v3.4.1)

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Bumps [aws-sdk](https://github.com/aws/aws-sdk-js) from 2.861.0 to 2.863.0.
- [Release notes](https://github.com/aws/aws-sdk-js/releases)
- [Changelog](https://github.com/aws/aws-sdk-js/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-js@v2.861.0...v2.863.0)

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Bumps [eslint-plugin-jest](https://github.com/jest-community/eslint-plugin-jest) from 24.2.1 to 24.3.1.
- [Release notes](https://github.com/jest-community/eslint-plugin-jest/releases)
- [Changelog](https://github.com/jest-community/eslint-plugin-jest/blob/main/CHANGELOG.md)
- [Commits](jest-community/eslint-plugin-jest@v24.2.1...v24.3.1)

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Bumps [@types/convict](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/convict) from 6.0.0 to 6.0.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/convict)

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)

Bumps [convict-format-with-validator](https://github.com/mozilla/node-convict) from 6.0.0 to 6.0.1.
- [Release notes](https://github.com/mozilla/node-convict/releases)
- [Changelog](https://github.com/mozilla/node-convict/blob/master/CHANGELOG.md)
- [Commits](mozilla/node-convict@v6.0.0...v6.0.1)

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Bumps [eslint](https://github.com/eslint/eslint) from 7.21.0 to 7.22.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](eslint/eslint@v7.21.0...v7.22.0)

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Bumps [mockdate](https://github.com/boblauer/MockDate) from 3.0.2 to 3.0.3.
- [Release notes](https://github.com/boblauer/MockDate/releases)
- [Changelog](https://github.com/boblauer/MockDate/blob/master/CHANGELOG.md)
- [Commits](boblauer/MockDate@v3.0.2...v3.0.3)

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Bumps [@types/nodemailer](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/nodemailer) from 6.4.0 to 6.4.1.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/nodemailer)

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Bumps [@opengovsg/spcp-auth-client](https://github.com/opengovsg/spcp-auth-client) from 1.4.2 to 1.4.3.
- [Release notes](https://github.com/opengovsg/spcp-auth-client/releases)
- [Commits](opengovsg/spcp-auth-client@v1.4.2...v1.4.3)

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