Fix: Consistently quote strings in YAML files

.github/workflows/integrate.yaml

@@ -1,4 +1,4 @@
-name: Integrate
+name: "Integrate"
 
 on:
   pull_request: null
@@ -19,19 +19,19 @@ jobs:
           - '8.2'
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v2
+      - name: "Checkout"
+        uses: "actions/checkout@v2"
 
-      - name: Setup PHP
-        uses: shivammathur/setup-php@v2
+      - name: "Setup PHP"
+        uses: "shivammathur/setup-php@v2"
         with:
-          php-version: ${{ matrix.php-version }}'
+          php-version: "${{ matrix.php-version }}'"
 
-      - name: Validate composer.json and composer.lock
-        run: composer validate
+      - name: "Validate composer.json and composer.lock"
+        run: "composer validate"
 
-      - name: Install dependencies
-        run: composer install --prefer-dist --no-progress --no-suggest
+      - name: "Install dependencies"
+        run: "composer install --prefer-dist --no-progress --no-suggest"
 
-      - name: Run PHPUnit
-        run: vendor/bin/phpunit -c tests/build.xml
+      - name: "Run PHPUnit"
+        run: "vendor/bin/phpunit -c tests/build.xml"