Bump gh actions dependencies

Author: flack

.github/workflows/main.yml

@@ -20,7 +20,7 @@ jobs:
       fail-fast: false
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: niden/actions-memcached@v7
 
     - name: Setup PHP
@@ -36,7 +36,7 @@ jobs:
 
     - name: Cache Composer packages
       id: composer-cache
-      uses: actions/cache@v4
+      uses: actions/cache@v5
       with:
         path: vendor
         key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}