allow PHP 8.3 (#4471)

Fix use of range() and auto-width columns for Excel exports

.github/workflows/testing.yaml

@@ -19,7 +19,7 @@ jobs:
                 options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
         strategy:
             matrix:
-                php: ['8.1', '8.2']
+                php: ['8.1', '8.2', '8.3']
 
         name: Integration (${{ matrix.php }})
         steps:
@@ -92,7 +92,7 @@ jobs:
                     TEST_WITH_BUNDLES: 1
 
             -   name: Upload code coverage
-                if: matrix.php == '8.1'
+                if: matrix.php == '8.2'
                 uses: codecov/codecov-action@v3
                 with:
                     token: ${{ secrets.CODECOV_TOKEN }}