Bump coverallsapp/github-action from 2.3.7 to 2.3.8

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.3.7 to 2.3.8.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@5cbfd81...8d6379e)

---
updated-dependencies:
- dependency-name: coverallsapp/github-action
  dependency-version: 2.3.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -162,7 +162,7 @@ jobs:
         run: cargo llvm-cov --workspace --lcov --output-path lcov.info
 
       - name: Upload code coverage to Coveralls
-        uses: coverallsapp/github-action@5cbfd81b66ca5d10c19b062c04de0199c215fb6e # v2.3.7
+        uses: coverallsapp/github-action@8d6379e14d29928660c4ba802d8e85393440b329 # v2.3.8
         continue-on-error: true
 
       # Need to rebuild the FFI wrapper so that its binary is given a filename