Bump mattnotmitt/doxygen-action from 1.2.1 to 1.12.0 (#1371)

Author: stnolting

.github/workflows/Documentation.yml

@@ -28,7 +28,7 @@ jobs:
         sed -i 's/$(PWD)\/../$(GITHUB_WORKSPACE)/g' ./docs/Doxyfile
 
     - name: '📚 Generate Doxygen Documentation'
-      uses: mattnotmitt/doxygen-action@v1.2.1
+      uses: mattnotmitt/doxygen-action@v1.12.0
       with:
         working-directory: '.'
         doxyfile-path: 'docs/Doxyfile'