Bump shivammathur/setup-php from 2.30.5 to 2.31.0

Bumps [shivammathur/setup-php](https://github.com/shivammathur/setup-php) from 2.30.5 to 2.31.0.
- [Release notes](https://github.com/shivammathur/setup-php/releases)
- [Commits](shivammathur/setup-php@2.30.5...2.31.0)

---
updated-dependencies:
- dependency-name: shivammathur/setup-php
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/phpstan.yml

@@ -10,7 +10,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.30.5
+        uses: shivammathur/setup-php@2.31.0
         with:
           php-version: 8.3
 

.github/workflows/run-tests.yml

@@ -54,7 +54,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.30.5
+        uses: shivammathur/setup-php@2.31.0
         with:
           php-version: ${{ matrix.php }}
           extensions: fileinfo, dom, curl, libxml, mbstring, zip, pcntl, pdo, sqlite, pdo_sqlite, bcmath, soap, intl, gd, exif, iconv, imagick