Update rpe_test.yml to use macos latest

Author: NadeemYaseen

.github/workflows/rpe_test.yml

@@ -116,7 +116,7 @@ jobs:
       matrix:
         os: 
           - ubuntu-22.04 # This is CentOS 7 under the hood
-          - macos-12
+          - macos-latest
           - windows-latest
 
     runs-on: ${{ matrix.os }}