Update doxygen version used for action

Author: Piras314

.github/workflows/doxygen.yml

@@ -41,7 +41,7 @@ jobs:
 
       # Runs a single command using the runners shell
       - name: Doxygen Action
-        uses: mattnotmitt/doxygen-action@v1.9.8
+        uses: mattnotmitt/doxygen-action@v1.12
         with:
           doxyfile-path: 'doc/Doxygen.cfg'
       - name: Setup Pages