Create new steps to merge with Github Actions

.github/workflows/generate-and-submit-documentation.yaml

@@ -37,11 +37,21 @@ jobs:
         github_token: ${{ secrets.AUTHORIZATION_TOKEN }}
         message: "Update documentation"
 
-    - name: Update develop branch
-      uses: michelmelo/[email protected]
-      with:
-        target_branch: 'fix/generate-documentation-workflow-test-merge'
-        from_branch: 'fix/generate-documentation-workflow'
-        user_email: github-actions[bot]@users.noreply.github.com
-        user_name: github-actions[bot]
-        github_token: ${{ secrets.PERSONAL_ACCESS_TOKEN_FINE_GRAINED }}
+    - name: Configure Git
+      run: |
+        git config --global user.name 'github-actions'
+        git config --global user.email '[email protected]'
+
+    - name: Fetch all branches
+      run: git fetch --all
+
+    - name: Checkout target branch
+      run: git checkout fix/generate-documentation-workflow-test-merge
+
+    - name: Merge source branch into target branch
+      run: git merge fix/generate-documentation-workflow --no-ff
+
+    - name: Push changes
+      env:
+        GITHUB_TOKEN: ${{ secrets.AUTHORIZATION_TOKEN }}
+      run: git push origin fix/generate-documentation-workflow-test-merge