copy pasta to fix checks

would be nice if actions had some way to just bail out of a job early instead of clowning around with 2 jobs...

.github/workflows/draft-release-pr-check.yml

@@ -81,6 +81,26 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/[email protected]
+        with:
+          php-version: ${{ matrix.php-version }}
+
+      - name: Restore Composer package cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/composer/files
+            ~/.cache/composer/vcs
+          key: "composer-v2-cache-${{ hashFiles('./composer.lock') }}"
+          restore-keys: |
+            composer-v2-cache-
+
+      - name: Install Composer dependencies
+        run: composer install --no-dev --prefer-dist --no-interaction --ignore-platform-reqs
+
       - name: Check changelog file is present
         id: file-presence
         run: |