Bump ramsey/composer-install from 3 to 4 in the actions group

Bumps the actions group with 1 update: [ramsey/composer-install](https://github.com/ramsey/composer-install).


Updates `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
  dependency-group: actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/wp-compatibility-test.yml

@@ -131,7 +131,7 @@ jobs:
           tools: composer:v2, phpcs
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           dependency-versions: highest
           composer-options: "--prefer-dist --no-progress"
@@ -186,7 +186,7 @@ jobs:
           tools: composer:v2, phpcs
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           dependency-versions: highest
           composer-options: "--prefer-dist --no-progress"
@@ -395,7 +395,7 @@ jobs:
           tools: composer:v2
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           dependency-versions: highest
           composer-options: "--prefer-dist --no-progress"
@@ -460,7 +460,7 @@ jobs:
           tools: composer:v2
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           dependency-versions: highest
           composer-options: "--prefer-dist --no-progress"
@@ -620,7 +620,7 @@ jobs:
         run: composer config --unset platform.php
 
       - name: Install Composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
         with:
           dependency-versions: highest
           composer-options: "--prefer-dist --no-progress"