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] <support@github.com>

Author: dependabot[bot]

.github/workflows/tests.yml

@@ -27,7 +27,7 @@ jobs:
           coverage: xdebug
 
       - name: Install dependencies with Composer
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@v3
 
       - name: Coding standards
         if: matrix.analysis