[Backport 4.2.x] Github Actions / Bump stCarolas/setup-maven from 4 t…

…o 5 (#7720)

Bumps [stCarolas/setup-maven](https://github.com/stcarolas/setup-maven) from 4 to 5.
- [Release notes](https://github.com/stcarolas/setup-maven/releases)
- [Commits](stCarolas/setup-maven@v4...v5)

---
updated-dependencies:
- dependency-name: stCarolas/setup-maven
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Backport #7718.

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

.github/workflows/linux.yml

@@ -35,7 +35,7 @@ jobs:
       working-directory: docs/manual
       run: pip install --upgrade pip && pip install -r requirements.txt
     - name: Set up Maven
-      uses: stCarolas/setup-maven@v4
+      uses: stCarolas/setup-maven@v5
       with:
         maven-version: 3.6.3
     - name: Build with Maven
@@ -61,7 +61,7 @@ jobs:
         java-version: 8
         cache: 'maven'
     - name: Set up Maven
-      uses: stCarolas/setup-maven@v4
+      uses: stCarolas/setup-maven@v5
       with:
         maven-version: 3.6.3
     - name: Test with maven