Test on GHA on PHP 8.4.

Author: Crell

.github/workflows/quality-assurance.yaml

@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: [ '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3' ]
+                php: [ '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4' ]
                 composer-flags: [ '' ]
                 phpunit-flags: [ '--coverage-text' ]
         steps: