chore: bump threeal/gcovr-action from 1.1.0 to 1.2.0 (#165)

Bumps [threeal/gcovr-action](https://github.com/threeal/gcovr-action) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/threeal/gcovr-action/releases)
- [Commits](threeal/gcovr-action@v1.1.0...v1.2.0)

---
updated-dependencies:
- dependency-name: threeal/gcovr-action
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -20,7 +20,7 @@ jobs:
         uses: threeal/ctest-action@v1.1.0
 
       - name: Check coverage
-        uses: threeal/gcovr-action@v1.1.0
+        uses: threeal/gcovr-action@v1.2.0
         with:
           excludes: build/*
           fail-under-line: 99