Bump shivammathur/setup-php from 2.13.0 to 2.15.0

Author: github-actions[bot]

.github/workflows/coding-standards.yml

@@ -24,7 +24,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           coverage: "none"
           php-version: "${{ matrix.php-version }}"

.github/workflows/composer-json-lint.yml

@@ -24,7 +24,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           coverage: "none"
           php-version: "${{ matrix.php-version }}"

.github/workflows/mutation-tests.yml

@@ -24,7 +24,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           coverage: "xdebug"
           php-version: "${{ matrix.php-version }}"

.github/workflows/phpunit.yml

@@ -27,7 +27,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           php-version: "${{ matrix.php-version }}"
           ini-values: memory_limit=-1
@@ -80,7 +80,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           coverage: "none"
           php-version: "${{ matrix.php-version }}"

.github/workflows/static-analysis.yml

@@ -24,7 +24,7 @@ jobs:
         uses: "actions/checkout@v2"
 
       - name: "Install PHP"
-        uses: "shivammathur/setup-php@2.13.0"
+        uses: "shivammathur/setup-php@2.15.0"
         with:
           coverage: "none"
           php-version: "${{ matrix.php-version }}"