add php 8.1 to tbe build matrix

Author: unglaublicherdude

.github/workflows/github-release.yaml

@@ -47,7 +47,7 @@ jobs:
   test:
     strategy:
       matrix:
-        php-version: ["8.2", "8.3"]
+        php-version: ["8.1", "8.2", "8.3"]
     runs-on: ubuntu-latest
     container:
       image: mcr.microsoft.com/devcontainers/php:1-${{ matrix.php-version }}-bullseye