fix(deps): update dependency @hello.nrfcloud.com/nrfcloud-api-helpers to ^6.0.388

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@hello.nrfcloud.com/nrfcloud-api-helpers	^6.0.384 -> ^6.0.388

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[renovate]

⚠️ Artifact update problem

Renovate failed to update an artifact related to this branch. You probably do not want to merge this PR as-is.

♻ Renovate will retry this branch, including artifacts, only when one of the following happens:

• any of the package files in this branch needs updating, or
• the branch becomes conflicted, or
• you click the rebase/retry checkbox if found above, or
• you rename this PR's title to start with "rebase!" to trigger it manually

The artifact failure details are included below:

File name: package-lock.json

npm warn Unknown env config "store". This will stop working in the next major version of npm.
npm error code ERESOLVE
npm error ERESOLVE could not resolve
npm error
npm error While resolving: @hello.nrfcloud.com/bdd-markdown-steps@0.0.0-development
npm error Found: @aws-sdk/client-dynamodb@3.913.0
npm error node_modules/@aws-sdk/client-dynamodb
npm error   peer @aws-sdk/client-dynamodb@"^3.913.0" from the root project
npm error   peer @aws-sdk/client-dynamodb@"^3.913.0" from @aws-sdk/util-dynamodb@3.913.0
npm error   node_modules/@aws-sdk/util-dynamodb
npm error     @aws-sdk/util-dynamodb@"3.913.0" from @bifravst/http-api-mock@2.1.310
npm error     node_modules/@bifravst/http-api-mock
npm error       peer @bifravst/http-api-mock@"^2.1.310" from the root project
npm error   1 more (@bifravst/http-api-mock)
npm error
npm error Could not resolve dependency:
npm error peer @hello.nrfcloud.com/nrfcloud-api-helpers@"^6.0.388" from the root project
npm error
npm error Conflicting peer dependency: @aws-sdk/client-dynamodb@3.917.0
npm error node_modules/@aws-sdk/client-dynamodb
npm error   peer @aws-sdk/client-dynamodb@"^3.914.0" from @hello.nrfcloud.com/nrfcloud-api-helpers@6.0.390
npm error   node_modules/@hello.nrfcloud.com/nrfcloud-api-helpers
npm error     peer @hello.nrfcloud.com/nrfcloud-api-helpers@"^6.0.388" from the root project
npm error
npm error Fix the upstream dependency conflict, or retry
npm error this command with --force or --legacy-peer-deps
npm error to accept an incorrect (and potentially broken) dependency resolution.
npm error
npm error
npm error For a full report see:
npm error /runner/cache/others/npm/_logs/2025-10-24T22_53_53_418Z-eresolve-report.txt
npm error A complete log of this run can be found in: /runner/cache/others/npm/_logs/2025-10-24T22_53_53_418Z-debug-0.log