Merge pull request #274 from carlcasbolt/main

Added support for PHP 8.3

Author: fabpot

.github/workflows/tests.yml

@@ -18,6 +18,7 @@ jobs:
           - "8.0"
           - "8.1"
           - "8.2"
+          - "8.3"
         dependencies:
           - "psr/container:^1.1"
           - "psr/container:^2.0"