ci: Update action-versions, remove unneeded code coverage workflow

Author: Stephan Wentz

.github/workflows/build.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
       - name: "Install PHP"
         uses: "shivammathur/setup-php@v2"
@@ -34,7 +34,7 @@ jobs:
           extensions: mbstring
 
       - name: "Cache dependencies"
-        uses: "actions/cache@v2"
+        uses: "actions/cache@v4"
         with:
           path: "~/.composer/cache"
           key: "php-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.json') }}"

.github/workflows/code_coverage.yaml

@@ -15,9 +15,9 @@ jobs:
 
     steps:
       - name: "Checkout"
-        uses: "actions/checkout@v3"
+        uses: "actions/checkout@v4"
 
-      - uses: "actions/setup-node@v3"
+      - uses: "actions/setup-node@v4"
         with:
           node-version: 'lts/*'