Bump shivammathur/setup-php from 2.26.0 to 2.27.0

Bumps [shivammathur/setup-php](https://github.com/shivammathur/setup-php) from 2.26.0 to 2.27.0.
- [Release notes](https://github.com/shivammathur/setup-php/releases)
- [Commits](shivammathur/setup-php@7fdd3ec...81cd5ae)

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

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

.github/workflows/unit-test.yml

@@ -126,7 +126,7 @@ jobs:
             # dependency versions are installed and cached.
             ##
             - name: Set up PHP
-              uses: shivammathur/setup-php@7fdd3ece872ec7ec4c098ae5ab7637d5e0a96067 # v2.26.0
+              uses: shivammathur/setup-php@81cd5ae0920b34eef300e1775313071038a53429 # v2.27.0
               with:
                   php-version: '${{ matrix.php }}'
                   ini-file: development
@@ -226,7 +226,7 @@ jobs:
                   show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
 
             - name: Set up PHP
-              uses: shivammathur/setup-php@7fdd3ece872ec7ec4c098ae5ab7637d5e0a96067 # v2.26.0
+              uses: shivammathur/setup-php@81cd5ae0920b34eef300e1775313071038a53429 # v2.27.0
               with:
                   php-version: '7.4'
                   coverage: none