Bump shivammathur/setup-php from 2.21.2 to 2.37.1 in /.github/workflows

Bumps [shivammathur/setup-php](https://github.com/shivammathur/setup-php) from 2.21.2 to 2.37.1.
- [Release notes](https://github.com/shivammathur/setup-php/releases)
- [Commits](shivammathur/setup-php@2.21.2...2.37.1)

---
updated-dependencies:
- dependency-name: shivammathur/setup-php
  dependency-version: 2.37.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up PHP environment
-        uses: shivammathur/setup-php@2.21.2
+        uses: shivammathur/setup-php@2.37.1
         with:
           coverage: none
           php-version: ${{ matrix.php }}
@@ -54,7 +54,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up PHP environment
-        uses: shivammathur/setup-php@2.21.2
+        uses: shivammathur/setup-php@2.37.1
         with:
           coverage: none
           php-version: ${{ matrix.php }}