Bump coverallsapp/github-action from 2.3.1 to 2.3.4

Bumps [coverallsapp/github-action](https://github.com/coverallsapp/github-action) from 2.3.1 to 2.3.4.
- [Release notes](https://github.com/coverallsapp/github-action/releases)
- [Commits](coverallsapp/github-action@v2.3.1...v2.3.4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/testsuite.yml

@@ -102,7 +102,7 @@ jobs:
           FLOAT_DTYPE_32: ${{ matrix.float_dtype_32 }}
       - name: Send coverage to Coveralls (parallel)
         if: ${{ startsWith(matrix.os, 'ubuntu-') && matrix.python-version == needs.get_python_versions.outputs.max-python }}
-        uses: coverallsapp/[email protected].1
+        uses: coverallsapp/[email protected].4
         with:
           parallel: true
           flag-name: run ${{ join(matrix.*, ' - ') }}
@@ -113,7 +113,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Close parallel build
-        uses: coverallsapp/[email protected].1
+        uses: coverallsapp/[email protected].4
         with:
           parallel-finished: true