Update to checkout@v6 for build release action

Author: turegjorup

.github/workflows/github_build_release.yml

@@ -16,7 +16,7 @@ jobs:
             APP_ENV: prod
         steps:
             - name: Checkout
-              uses: actions/checkout@v4
+              uses: actions/checkout@v6
 
             - name: Composer install
               run: |