Bump shivammathur/setup-php from 2 to 2.11.0 (#4679)

Bumps [shivammathur/setup-php](https://github.com/shivammathur/setup-php) from 2 to 2.11.0.
- [Release notes](https://github.com/shivammathur/setup-php/releases)
- [Commits](shivammathur/setup-php@v2...2.11.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/deploy-apidocs.yml

@@ -35,7 +35,7 @@ jobs:
           path: api
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@2.11.0
         with:
           php-version: '7.4'
           extensions: intl

.github/workflows/test-phpstan.yml

@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v2.3.4
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@2.11.0
         with:
           php-version: ${{ matrix.php-versions }}
           extensions: intl

.github/workflows/test-phpunit.yml

@@ -89,7 +89,7 @@ jobs:
         uses: actions/checkout@v2.3.4
 
       - name: Setup PHP, with composer and extensions
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@2.11.0
         with:
           php-version: ${{ matrix.php-versions }}
           tools: composer, pecl

.github/workflows/test-rector.yml

@@ -39,7 +39,7 @@ jobs:
         uses: actions/checkout@v2.3.4
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+        uses: shivammathur/setup-php@2.11.0
         with:
           php-version: ${{ matrix.php-versions }}
           extensions: intl