disable old macos versions

These can't install dependencies anymore.

Author: simbabque

.github/workflows/build-and-test.yml

@@ -89,8 +89,6 @@ jobs:
       matrix:
         os: ["macos-latest"]
         perl-version:
-          - "5.10"
-          - "5.12"
           - "5.14"
           - "5.16"
           - "5.18"