Use actions/cache@v4

Author: John Shaffer

.github/workflows/codequality.yml

@@ -31,7 +31,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Cache PHP dependencies
-      uses: actions/cache@v1
+      uses: actions/cache@v4
       with:
         path: vendor
         key: ${{ runner.OS }}-build-${{ hashFiles('**/composer.lock') }}

.github/workflows/integration-tests.yml

@@ -32,7 +32,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Cache Clojure dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           key: clj-wp2static-integration-tests-${{ hashFiles('**/deps.edn') }}
           restore-keys: clj-wp2static-integration-tests-