Update actions/cache action to v4.3.0 (#1742)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/php.yml

@@ -65,7 +65,7 @@ jobs:
         key: ${{ env.key }}
 
     - name: Cache extensions
-      uses: actions/cache@v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       with:
         path: ${{ steps.extcache.outputs.dir }}
         key: ${{ steps.extcache.outputs.key }}
@@ -84,15 +84,15 @@ jobs:
 
     - name: Cache Composer packages
       id: composer-cache
-      uses: actions/cache@v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       with:
         path: vendor
         key: ${{ runner.os }}-${{ matrix.php-version }}-vendor-${{ hashFiles('composer.json') }}
         restore-keys: |
           ${{ runner.os }}-${{ matrix.php-version }}-vendor-
     - name: Cache test tools
       id: test-tools-cache
-      uses: actions/cache@v4
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
       with:
         path: vendor-bin
         key: ${{ runner.os }}-${{ matrix.php-version }}-vendor-bin-${{ hashFiles('vendor-bin/*/composer.json') }}