Remove macOS 11 check and add macOS 14

The macOS 11 runner image is deprecated on Dotcom.

Author: henrymercer

.github/workflows/codeql.yml

@@ -75,7 +75,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-20.04,ubuntu-22.04,windows-2019,windows-2022,macos-11,macos-12,macos-13]
+        os: [ubuntu-20.04,ubuntu-22.04,windows-2019,windows-2022,macos-12,macos-13,macos-14]
         tools: ${{ fromJson(needs.check-codeql-versions.outputs.versions) }}
     runs-on: ${{ matrix.os }}