Fix composer cache

Author: coisa

.github/workflows/tests.yml

@@ -22,11 +22,18 @@ jobs:
         steps:
             - uses: actions/checkout@v4
 
+            - name: Get Composer Cache Directory
+              id: composer-cache
+              run: |
+                  echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
             - name: Cache Composer dependencies
-              uses: actions/cache@v3
+              uses: actions/cache@v4
               with:
-                  path: /tmp/composer-cache
-                  key: ${{ runner.os }}-${{ hashFiles('**/composer.lock') }}
+                  path: ${{ steps.composer-cache.outputs.dir }}
+                  key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+                  restore-keys: |
+                      ${{ runner.os }}-composer-
 
             - name: Install dependencies
               uses: php-actions/composer@v6