chore(deps): update actions/checkout action to v4.3.0 (#110)

| datasource  | package          | from   | to     |
| ----------- | ---------------- | ------ | ------ |
| github-tags | actions/checkout | v4.2.2 | v4.3.0 |

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

@@ -18,7 +18,7 @@ jobs:
                     - { php-version: 8.4, dependencies: highest, coverage: pcov, with_coverage: false, allow-fail: true }
         steps:
             -   name: "Checkout"
-                uses: "actions/checkout@v4.2.2"
+                uses: "actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955" # v4.3.0
 
             -   name: "Install PHP"
                 uses: "shivammathur/setup-php@20529878ed81ef8e78ddf08b480401e6101a850f" # 2.35.3