ratify: add livecheck, update checksum for 1.4.1 release

[stefanb]

Release workflow log https://github.com/notaryproject/ratify/actions/workflows/release.yml

indicates that the teg v1.4.1 was present on at least 4 different commits pushed by @susanshi:

• notaryproject/ratify@e171989 - picked up by ratify 1.4.1 #278780
• notaryproject/ratify@0e4e9e8
• notaryproject/ratify@b7556a8
• notaryproject/ratify@4d7fb53 - currently tagged as https://github.com/notaryproject/ratify/releases/tag/v1.4.1

Diff across all of them: notaryproject/ratify@e171989...4d7fb53
indicates various changes in several months time span. 🙄

...all while release 1.4.1 does not exist yet on https://github.com/notaryproject/ratify/releases and latest is currently still pointing to 1.4.0 release: https://github.com/notaryproject/ratify/releases/latest

so github_latest livecheck strategy is needed.

Ref:

• https://github.com/notaryproject/ratify/releases/tag/v1.4.1
• ratify 1.4.1 #278780
• go 1.27rc2, go@1.26 1.26.5 (new formula) #288803
• ratify 1.4.2 #289608

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• Have you followed the guidelines for contributing?
• Have you ensured that your commits follow the commit style guide?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>?
• Is your test running fine brew test <formula>?
• Does your build pass brew audit --strict <formula> (after doing HOMEBREW_NO_INSTALL_FROM_API=1 brew install --build-from-source <formula>)? If this is a new formula, does it pass brew audit --new <formula>?

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• AI was used to generate or assist with generating this PR. Please specify below how you used AI to help you, and what steps you have taken to manually verify the changes.

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[stefanb]

Superseded by

• ratify 1.4.2 #289608

Livecheck added in

• ratify: add livecheck #289638