Test 8.1

Author: srtfisher

.github/workflows/all-pr-tests.yml

@@ -23,7 +23,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: [8.2, 8.3, 8.4]
+        php: [8.1, 8.2, 8.3, 8.4]
         wordpress: ["latest"]
         multisite: ['true', 'false']
     runs-on: ubuntu-latest