Update deploy.yml

Author: ChristianHohlfeld

.github/workflows/deploy.yml

@@ -16,7 +16,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Run tests
-        run: chmod +x ./tests/run_tests.sh && ./tests/run_tests.sh  # Ensure the script has execute permissions and run tests
+        run: cd ./tests && chmod +x run_tests.sh && ./run_tests.sh  # Ensure the script has execute permissions and run tests
         continue-on-error: false  # Skip deployment if tests fail
 
       # Prepare files for GitHub Pages and exclude the _site directory