Bump ramsey/composer-install from 3 to 4 (#27)

Bumps [ramsey/composer-install](https://github.com/ramsey/composer-install) from 3 to 4.
- [Release notes](https://github.com/ramsey/composer-install/releases)
- [Commits](ramsey/composer-install@v3...v4)

---
updated-dependencies:
- dependency-name: ramsey/composer-install
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/tests.yaml

@@ -57,7 +57,7 @@ jobs:
       - name: Remove unneeded deps during tests
         run: composer remove --dev --no-update facile-it/facile-coding-standard
       - name: Install dependencies
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
         with:
           dependency-versions: ${{ matrix.dependencies }}
         env:
@@ -93,5 +93,5 @@ jobs:
         with:
           php-version: 7.4
       - name: Install dependencies
-        uses: "ramsey/composer-install@v3"
+        uses: "ramsey/composer-install@v4"
       - run: ${{ matrix.script }}