GH Actions: Bump the action-runners group across 1 directory with 2 updates

Bumps the action-runners group with 2 updates in the / directory: [actions/checkout](https://github.com/actions/checkout) and [shivammathur/setup-php](https://github.com/shivammathur/setup-php).


Updates `actions/checkout` from 6.0.2 to 6.0.3
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@de0fac2...df4cb1c)

Updates `shivammathur/setup-php` from 2.37.0 to 2.37.1
- [Release notes](https://github.com/shivammathur/setup-php/releases)
- [Commits](shivammathur/setup-php@accd612...7c071df)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: action-runners
- dependency-name: shivammathur/setup-php
  dependency-version: 2.37.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: action-runners
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/reusable-validate.yml

@@ -18,12 +18,12 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
         with:
           persist-credentials: false
 
       - name: Install PHP
-        uses: shivammathur/setup-php@accd6127cb78bee3e8082180cb391013d204ef9f # 2.37.0
+        uses: shivammathur/setup-php@7c071dfe9dc99bdf297fa79cb49ea005b9fcadbc # 2.37.1
         with:
           php-version: ${{ matrix.php }}
           coverage: none