Update workflow actions versions (#184)

* Update workflow actions versions

* Trying to fix timeout fetching composer

* COMPOSER_PROCESS_TIMEOUT

Author: Kevinrob

.github/workflows/tests.yml

@@ -12,7 +12,7 @@ jobs:
           - "lowest"
           - "highest"
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Install PHP
       uses: shivammathur/setup-php@v2
@@ -24,9 +24,11 @@ jobs:
       run: composer validate
 
     - name: "Composer install ${{ matrix.dependencies }} dependencies"
-      uses: "ramsey/composer-install@v1"
+      uses: ramsey/composer-install@v2
       with:
         dependency-versions: "${{ matrix.dependencies }}"
+      env:
+        COMPOSER_PROCESS_TIMEOUT: 6000 
 
     - name: Run test suite
       run: composer run-script test