docs(CHANGES): CI actions on current majors

why: Record the workflow action refresh for the next release.

what:
- Add a Development entry noting the action majors moved and that
  workflow behavior is unchanged

Author: tony

CHANGES

@@ -20,6 +20,15 @@ $ uv add libvcs --prerelease allow
 _Notes on the upcoming release will go here._
 <!-- END PLACEHOLDER - ADD NEW CHANGELOG ENTRIES BELOW THIS LINE -->
 
+### Development
+
+#### CI actions updated to current majors
+
+Workflow actions moved to their current major releases: `actions/checkout` v7,
+`actions/cache` v6, `astral-sh/setup-uv` v9.0.0, `codecov/codecov-action` v7,
+and `dorny/paths-filter` v4. Workflow behavior is unchanged, though setup-uv no
+longer prunes the uv cache, so the first run after this repopulates it.
+
 ## libvcs 0.45.1 (2026-07-11)
 
 libvcs 0.45.1 unbreaks test suites that build their documentation before running pytest: the bundled pytest plugin no longer overrides pytest's own collection-ignore rules, so generated `_build/` output stops aborting collection. The documentation now runs every Python example as a doctest against real temporary repositories, which surfaced and corrected examples that had drifted from the API.