chore(deps): Update ramsey/composer-install action to v4

Author: renovate[bot]

.github/workflows/continuous-integration.yml

@@ -36,7 +36,7 @@ jobs:
         run: composer validate --strict
 
       - name: "Setup Composer, install dependencies"
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@4.0.0
         with:
            composer-options: "--prefer-dist --optimize-autoloader"
            require-lock-file: "false"
@@ -61,7 +61,7 @@ jobs:
         run: composer validate --strict
 
       - name: "Setup Composer, install dependencies"
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@4.0.0
         with:
           composer-options: "--prefer-dist --optimize-autoloader"
           require-lock-file: "false"
@@ -97,7 +97,7 @@ jobs:
         run: composer validate --strict
 
       - name: "Setup Composer, install dependencies"
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@4.0.0
         with:
            composer-options: "--prefer-dist --optimize-autoloader"
            require-lock-file: "false"