chore(ci): fix macos conan cache

Author: qqiangwu

.github/workflows/ci-macos.yml

@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         build_type: [ Release ]
-        os: [macos-13, macos-14, macos-15]
+        os: [macos-latest]
         compiler:
           - cc: cc
             cxx: c++