chore(deps): update shivammathur/setup-php action to v2.33.0 (#20)

| datasource  | package                | from   | to     |
| ----------- | ---------------------- | ------ | ------ |
| github-tags | shivammathur/setup-php | 2.32.0 | 2.33.0 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/php-tests.yml

@@ -21,7 +21,7 @@ jobs:
                 uses: "actions/[email protected]"
 
             -   name: "Install PHP"
-                uses: "shivammathur/setup-php@2.32.0"
+                uses: "shivammathur/setup-php@2.33.0"
                 with:
                     coverage: "${{ matrix.coverage }}"
                     ini-values: display_errors=On, display_startup_errors=On, error_reporting=32767