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/static-analysis.yaml

@@ -32,5 +32,5 @@ jobs:
         with:
           php-version: 7.4
       - name: Install dependencies
-        uses: "ramsey/composer-install@v2"
+        uses: "ramsey/composer-install@v3"
       - run: ${{ matrix.script }}

.github/workflows/tests.yaml

@@ -52,7 +52,7 @@ jobs:
         run: composer require --dev "symfony/symfony:${{ matrix.symfony }}" --no-update
         if: matrix.symfony
       - name: Install dependencies
-        uses: "ramsey/composer-install@v2"
+        uses: "ramsey/composer-install@v3"
         with:
           dependency-versions: "${{ matrix.dependencies }}"
       - name: Run tests