chore(deps): update cachix/install-nix-action action to v19

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cachix/install-nix-action	action	major	v18 -> v19

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Release Notes

cachix/install-nix-action

v19: install-nix-action-v19

Compare Source

• expose github_access_token option and use the default github token by default to prevent rate limiting
• support --no-daemon installation

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Configuration

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[what-the-diff]

• The version of the cachix/install-nix-action was updated from v18 to v19.