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/cs.yml

@@ -39,7 +39,7 @@ jobs:
       # Install dependencies and handle caching in one go.
       # @link https://github.com/marketplace/actions/install-composer-dependencies
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@v3
         with:
           # Bust the cache at least once a month - output format: YYYY-MM-DD.
           custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")

.github/workflows/lint.yml

@@ -45,7 +45,7 @@ jobs:
       # Install dependencies and handle caching in one go.
       # @link https://github.com/marketplace/actions/install-composer-dependencies
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@v3
         with:
           # Bust the cache at least once a month - output format: YYYY-MM-DD.
           custom-cache-suffix: $(date -u -d "-0 month -$(($(date +%d)-1)) days" "+%F")

.github/workflows/test.yml

@@ -75,7 +75,7 @@ jobs:
         run: composer config --unset platform.php
 
       - name: "Install Composer dependencies"
-        uses: ramsey/composer-install@v2
+        uses: ramsey/composer-install@v3
         with:
           # Force a `composer update` run.
           dependency-versions: "highest"