chore: add PHP 8.2 to test suite

Author: bshaffer

.github/workflows/tests.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        php: [ "7.1", "7.2", "7.3", "7.4", "8.0", "8.1"]
+        php: [ "7.1", "7.2", "7.3", "7.4", "8.0", "8.1", "8.2"]
     name: PHP ${{matrix.php }} Unit Test
     steps:
       - uses: actions/checkout@v2