Disable PHP 5.2 in arm64 builds

Author: cytopia

.github/workflows/arm64.yml

@@ -25,7 +25,7 @@ jobs:
       fail-fast: False
       matrix:
         version:
-          - '5.2'
+          #- '5.2'  # No arm64 version available
           - '5.3'
           - '5.4'
           - '5.5'