GH Actions: Bump ramsey/composer-install from 2 to 3

Bumps [ramsey/composer-install](https://github.com/ramsey/composer-install) from 2 to 3.
- [Release notes](https://github.com/ramsey/composer-install/releases)
- [Commits](ramsey/composer-install@v2...v3)

---
updated-dependencies:
- dependency-name: ramsey/composer-install
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/php-qa.yml

@@ -45,15 +45,15 @@ jobs:
 
             - name: Install dependencies - normal
               if: ${{ matrix.php-versions != '8.4' }}
-              uses: "ramsey/composer-install@v2"
+              uses: "ramsey/composer-install@v3"
               with:
                 dependency-versions: ${{ matrix.dependency-versions }}
                 # Bust the cache at least once a month - output format: YYYY-MM.
                 custom-cache-suffix: $(date -u "+%Y-%m")
 
             - name: Install dependencies - ignore-platform-reqs
               if: ${{ matrix.php-versions == '8.4' }}
-              uses: "ramsey/composer-install@v2"
+              uses: "ramsey/composer-install@v3"
               with:
                 dependency-versions: ${{ matrix.dependency-versions }}
                 composer-options: "--ignore-platform-reqs"