extend/ENV: add extra secret type

[GunniBusch]

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Just some small fix for one discussion in Homebrew/homebrew-core#275950

[Copilot]

Pull request overview

This PR updates Homebrew’s environment “sensitive key” detection to treat authentication-related environment variables as sensitive, affecting which env vars are cleared/redacted during operations like command execution and formula stages.

Changes:

• Expand ENV.sensitive? matching to include keys containing auth.

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[MikeMcQuaid]

Thanks!

In future: please don't use e.g. chore: prefixes as we don't use that format here.

[GunniBusch]

Thanks!

In future: please don't use e.g. chore: prefixes as we don't use that format here.

sure. just wanted to make sure since this actually reduces the amounts of envs, and probably better to not give wrong thoughts