style: mention the step installs dependencies

Author: carlalexander

.github/workflows/test-php.yml

@@ -18,7 +18,7 @@ jobs:
           extensions: simplexml
       - name: Checkout source code
         uses: actions/checkout@v4
-      - name: Install composer
+      - name: Install Composer dependencies
         run: composer install --prefer-dist --no-progress --no-suggest
       - name: Run PHPCS
         run: composer phpcs
@@ -45,7 +45,7 @@ jobs:
         - name: Install WordPress Test Suite
           run: |
             bash bin/install-wp-tests.sh wordpress_test root root 127.0.0.1:${{ job.services.mysql.ports['3306'] }}
-        - name: Install composer
+        - name: Install Composer dependencies
           run: composer install --prefer-dist --no-progress --no-suggest --no-dev
         - name: Run phpunit
           run: phpunit
@@ -60,7 +60,7 @@ jobs:
           extensions: simplexml, mysql
       - name: Checkout source code
         uses: actions/checkout@v4
-      - name: Install composer
+      - name: Install Composer dependencies
         run: composer install --prefer-dist --no-progress --no-suggest
       - name: PHPStan Static Analysis
         run: composer phpstan