Update github actions to actions/checkout@v4 actions/cache@v4 codecov/codecov-action@v5

Author: firstred

.github/workflows/test.yaml

@@ -9,7 +9,7 @@ jobs:
                 php-versions: [ '8.1', '8.2', '8.3', '8.4' ]
         steps:
             -   name: Checkout repo
-                uses: actions/checkout@v2
+                uses: actions/checkout@v4
 
             -   name: Setup PHP
                 uses: shivammathur/setup-php@v2
@@ -28,7 +28,7 @@ jobs:
                 run: echo "::set-output name=dir::$(composer config cache-files-dir)"
 
             -   name: Cache composer dependencies
-                uses: actions/cache@v2
+                uses: actions/cache@v4
                 with:
                     path: ${{ steps.composer-cache.outputs.dir }}
                     key: ${{ runner.os }}-${{ matrix.php-versions }}-composer-${{ hashFiles('**/composer.json') }}
@@ -51,4 +51,4 @@ jobs:
 
             -   name: Codecov
                 if: matrix.php-versions == '8.3' && matrix.operating-system == 'ubuntu-latest'
-                uses: codecov/codecov-action@v2
+                uses: codecov/codecov-action@v5