go: requires macOS 12 Monterey or later

[qianbinbin]

• 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>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
• 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>?

---

As noted in https://tip.golang.org/doc/go1.25#darwin:

As announced in the Go 1.24 release notes, Go 1.25 requires macOS 12 Monterey or later. Support for previous versions has been discontinued.

Build failure log:

Building packages and commands for darwin/amd64.
dyld: Symbol not found: _SecTrustCopyCertificateChain
  Referenced from: /usr/local/Cellar/go/1.25.0/libexec/bin/go (which was built for Mac OS X 12.0)
  Expected in: /System/Library/Frameworks/Security.framework/Versions/A/Security
 in /usr/local/Cellar/go/1.25.0/libexec/bin/go

go tool dist: FAILED: /usr/local/Cellar/go/1.25.0/libexec/bin/go list -f={{if .Stale}}	STALE {{.ImportPath}}: {{.StaleReason}}{{end}} std: signal: abort trap

[qianbinbin]

Hi @cho-m @ZhongRuoyu @daeho-ro , could you please take a look at this PR? The CI failed somehow. Thanks.

[ZhongRuoyu]

Thanks for the PR @qianbinbin! The PR on itself looks good. Errors are pre-existing #226636 so let's merge this with CI-syntax-only Change only affects brew syntax, not the install. Only run syntax CI. .

Next time, please avoid pinging maintainers unless you don't receive a review in due time.