chore(dependencies): Update actions/cache action to v4.2.3 (#5)

| datasource  | package       | from   | to     |
| ----------- | ------------- | ------ | ------ |
| github-tags | actions/cache | v4.2.2 | v4.2.3 |

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

@@ -40,7 +40,7 @@ jobs:
                 uses: "ergebnis/.github/actions/composer/[email protected]"
 
             -   name: "Cache dependencies installed with composer"
-                uses: "actions/[email protected].2"
+                uses: "actions/[email protected].3"
                 with:
                     path: "${{ env.COMPOSER_CACHE_DIR }}"
                     key: "php-${{ matrix.php-version }}-composer-${{ matrix.dependencies }}-${{ hashFiles('composer.lock') }}"