chore(deps): update metcalfc/changelog-generator action to v4.8.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
metcalfc/changelog-generator	action	minor	v4.7.0 → v4.8.0

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Release Notes

metcalfc/changelog-generator (metcalfc/changelog-generator)

v4.8.0

Compare Source

Highlights

Failed changelog generation now fails the step

If the changelog could not be generated — an unresolvable ref, any git error — the action printed an ::error:: annotation and then exited 0. The step went green, outputs.changelog was never set, and downstream steps consumed an empty string without anything indicating a problem.

It now exits non-zero.

[!WARNING]
This is a behavior change. A workflow that was quietly passing on a broken changelog will now fail. That is the point — but expect it to surface as new red builds rather than as new errors, since the errors were always being printed.

fetch: true no longer intermittently fails on shallow checkouts

The default fetch path chained two git fetch --depth=1 calls ahead of git fetch --unshallow. Each rewrites .git/shallow while the next has already read it, so git would intermittently abort with:

fatal: shallow file has changed since we read it

Because fetch: true is the default and the exit code was being discarded, this produced a silently empty changelog rather than a visible failure. It was happening in this repository's own CI.

Now a single fetch, requesting --unshallow only when the checkout is actually shallow.

Testing

make test previously ran npm test || echo "no tests available", where npm test was exit 1 — it reported success unconditionally. The project now has a real suite covering changelog.sh against live git fixtures, ref validation, the release scripts, and the built dist/ bundle as the runner executes it. Both fixes above were found by adding it.

Full changelog

• 98b1282 - 4.8.0
• 32f61b2 - fix: make the version bump scripts portable (#​466)
• f64bf35 - build(deps-dev): bump eslint from 10.1.0 to 10.8.1 (#​460)
• e5f3244 - build(deps-dev): bump brace-expansion from 5.0.5 to 5.0.7 (#​448)
• 57d0aa3 - build(deps-dev): bump globals from 17.4.0 to 17.9.0 (#​457)
• ce20209 - build(deps-dev): bump prettier from 3.8.1 to 3.9.6 (#​454)
• 89d0cce - build(deps): bump actions/attest-build-provenance from 4.1.0 to 4.2.2 (#​464)
• daae4ab - build(deps): bump the codeql-action group with 3 updates (#​461)
• 58f7ad5 - fix: fail the step when the changelog cannot be generated (#​465)
• 4ffdab6 - build(deps-dev): bump @​vercel/ncc from 0.38.4 to 0.44.1 (#​441)
• ce7d426 - ci: bump codeql-action to v4.37.1 and group its future updates (#​459)
• cbc6a25 - test: replace the no-op test target with a real suite (#​458)
• f278f3b - docs: update README example to use actions/checkout v6
• 3f3af1f - fix: bump actions to Node 24-compatible versions
• 10c0451 - fix: pin codeql-action to SHA and document supply chain security

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