[#26696]DocDB: Limit Wno-vla-cxx-extension to only apple clang17+

Summary:
LLVM clang17 does not support `vla-cxx-extension`, so limit `Wno-vla-cxx-extension` to only apple `clang` v17+

Fixes #26696
Jira: DB-16072

Test Plan: Jenkins

Reviewers: esheng

Reviewed By: esheng

Subscribers: ybase

Differential Revision: https://phorge.dev.yugabyte.com/D43039

Author: hari90

CMakeLists.txt

@@ -376,9 +376,10 @@ if(IS_CLANG)
   ADD_CXX_FLAGS("-Wshorten-64-to-32")
 
   # Allow variable length arrays in C++.
+
   if("${COMPILER_VERSION}" VERSION_GREATER_EQUAL "18.0.0" OR
-     (APPLE AND "${COMPILER_VERSION}" VERSION_GREATER_EQUAL "17.0.0"))
-    ADD_CXX_FLAGS("-Wno-vla-cxx-extension")
+     (APPLE AND "${YB_COMPILER_TYPE}" STREQUAL "clang" AND "${COMPILER_VERSION}" VERSION_GREATER_EQUAL "17.0.0"))
+     ADD_CXX_FLAGS("-Wno-vla-cxx-extension")
   endif()
 endif()