chore(deps): bump coursier/cache-action from 8.0.1 to 8.1.0

Bumps [coursier/cache-action](https://github.com/coursier/cache-action) from 8.0.1 to 8.1.0.
- [Release notes](https://github.com/coursier/cache-action/releases)
- [Commits](coursier/cache-action@e47d7d3...90c3729)

---
updated-dependencies:
- dependency-name: coursier/cache-action
  dependency-version: 8.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/pr-build.yaml

@@ -28,7 +28,7 @@ jobs:
         with:
           node-version: '24'
       - name: Cache Coursier cache
-        uses: coursier/cache-action@e47d7d35a0d3a2c7f649ca5c63dfc2bbfaa002e7 # 8.0.1
+        uses: coursier/cache-action@90c37294538be80a558fd665531fcdc2b467b475 # 8.1.0
       - name: Check Formatting
         run: ./mill _.${{ matrix.lang }}[_].__.checkFormat
       - name: Compile with mill