Update shivammathur/setup-php action to v2.33.0

| 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>

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - uses: actions/[email protected]
-      - uses: shivammathur/setup-php@2.32.0
+      - uses: shivammathur/setup-php@2.33.0
 
         with:
           php-version: ${{ env.default_php }}