Update GitHub Actions workflow to fetch full git history

Added `fetch-depth: 0` to the checkout action to ensure the full git history is fetched. This change is crucial for workflows that rely on complete commit history for accurate processing or analysis.

Author: Fa-BRAIK

.github/workflows/phpunit-coverage-badge.yml

@@ -19,7 +19,9 @@ jobs:
 
     steps:
       - uses: actions/checkout@v4
-        token: ${{ secrets.NUXTIFYTS_BOT_API_KEY }}
+        with:
+          fetch-depth: 0
+          token: ${{ secrets.NUXTIFYTS_BOT_API_KEY }}
 
       - name: Setup Git
         run: |