Bump greenbone/actions from 1 to 2

Bumps [greenbone/actions](https://github.com/greenbone/actions) from 1 to 2.
- [Release notes](https://github.com/greenbone/actions/releases)
- [Commits](greenbone/actions@v1...v2)

---
updated-dependencies:
- dependency-name: greenbone/actions
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/build-docs.yml

@@ -11,7 +11,7 @@ jobs:
     container: greenbone/doxygen
     steps:
       - name: Run the c lang coverage action
-        uses: greenbone/actions/doc-coverage-clang@v1
+        uses: greenbone/actions/doc-coverage-clang@v2
 
   generate-xml-doc:
     name: Generate documentation (XML)

.github/workflows/update-header.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: 'ubuntu-latest'
     steps:
     - name: Run update header
-      uses: greenbone/actions/update-header@v1
+      uses: greenbone/actions/update-header@v2
       with:
         github-user: ${{ secrets.GREENBONE_BOT }}
         github-user-mail: ${{ secrets.GREENBONE_BOT_MAIL }}