build(deps): bump cachix/install-nix-action from 20 to 22

[dependabot]

Bumps cachix/install-nix-action from 20 to 22.

Release notes

Sourced from cachix/install-nix-action's releases.

install-nix-action-v22

• Nix 2.16.1
• Fix issues with System Integrity Protection when using macos-12

install-nix-action-v21

• pin Nix to 2.15.1 (recent releases broke too many things)
• fix the action to work on custom containers

Commits

• 6ed004b Merge pull request #184 from cachix/macos-bump
• e278794 Nix: 2.15.1 -> 2.16.1
• 8ab3881 use system certs
• 16b9514 Merge pull request #182 from l0b0/feat/configure-editors
• 2c203fd feat: Configure editors
• 4b933aa Nix: 2.15.1
• 3580693 Merge pull request #179 from joergdw/fix-action-path
• 3eb7a24 Merge pull request #178 from cachix/docs/149
• 840ed7c Document how to pass env vars to modern nix commands
• b2f4229 Fix action to make it work on custom containers;
• Additional commits viewable in compare view

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[dependabot]

Dependabot tried to add @fedekunze and @khoslaventures as reviewers to this PR, but received the following error from GitHub:

POST https://api.github.com/repos/evmos/ethermint/pulls/1794/requested_reviewers: 422 - Reviews may only be requested from collaborators. One or more of the users or teams you specified is not a collaborator of the evmos/ethermint repository. // See: https://docs.github.com/rest/reference/pulls#request-reviewers-for-a-pull-request

[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days-before-close if no further activity occurs.

[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. If you'd rather skip all updates until the next major or minor version, let me know by commenting @dependabot ignore this major version or @dependabot ignore this minor version. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.