Merge branch '10.5' into 11.5

* 10.5:
  Test with PHP 8.6

Author: sebastianbergmann

.github/workflows/ci.yaml

@@ -169,6 +169,7 @@ jobs:
           - "8.3"
           - "8.4"
           - "8.5"
+          - "8.6"
 
     steps:
       - name: Configure Git to avoid issues with line endings
@@ -241,6 +242,7 @@ jobs:
           - "8.3"
           - "8.4"
           - "8.5"
+          - "8.6"
 
     steps:
       - name: Configure Git to avoid issues with line endings
@@ -433,6 +435,7 @@ jobs:
           - "8.3"
           - "8.4"
           - "8.5"
+          - "8.6"
 
         coverage:
           - pcov