chore(deps): update actions/cache action to v4

Author: renovate[bot]

.github/workflows/test-redis.yml

@@ -30,7 +30,7 @@ jobs:
           php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies"
-        uses: "actions/cache@v3"
+        uses: "actions/cache@v4"
         with:
           path: "~/.composer/cache"
           key: "php-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.json') }}"

.github/workflows/test.yml

@@ -30,7 +30,7 @@ jobs:
           php-version: "${{ matrix.php-version }}"
 
       - name: "Cache dependencies"
-        uses: "actions/cache@v3"
+        uses: "actions/cache@v4"
         with:
           path: "~/.composer/cache"
           key: "php-${{ matrix.php-version }}-composer-${{ hashFiles('**/composer.json') }}"