Test PHP 8.4 (#117)

Author: staabm

.github/workflows/continuous-integration.yml

@@ -36,7 +36,7 @@ jobs:
     name: "Tests"
 
     runs-on: "ubuntu-latest"
-    
+
     strategy:
       matrix:
         php-version:
@@ -50,6 +50,7 @@ jobs:
           - "8.1"
           - "8.2"
           - "8.3"
+          - "8.4"
 
     steps:
       - name: "Checkout"