Update ci.yaml

Author: mnapoli

.github/workflows/ci.yaml

@@ -27,7 +27,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v2"
+        uses: "actions/checkout@v4"
         with:
           fetch-depth: 2
 
@@ -47,7 +47,7 @@ jobs:
         run: "vendor/bin/phpunit --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v2"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "phpunit-${{ matrix.deps }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"