top-level cmake: link llvm libraries to our shared library (#3973)

This fixes link errors seen on my environment.
(macOS 15.2, x86-64, Xcode 16.2)

Tested as:
```
mkdir b
cd b
cmake -D WAMR_BUILD_JIT=1 -D LLVM_DIR=/usr/local/opt/llvm@19/lib/cmake/llvm ..
make
```

CMakeLists.txt

@@ -182,7 +182,7 @@ if (WAMR_BUILD_SHARED)
     add_library (iwasm_shared SHARED ${WAMR_RUNTIME_LIB_SOURCE})
     set_target_properties (iwasm_shared PROPERTIES OUTPUT_NAME iwasm)
     target_include_directories(iwasm_shared INTERFACE ${WAMR_ROOT_DIR}/core/iwasm/include)
-    target_link_libraries (iwasm_shared INTERFACE ${LLVM_AVAILABLE_LIBS} ${UV_A_LIBS} -lm -ldl ${CMAKE_THREAD_LIBS_INIT})
+    target_link_libraries (iwasm_shared PUBLIC ${LLVM_AVAILABLE_LIBS} ${UV_A_LIBS} -lm -ldl ${CMAKE_THREAD_LIBS_INIT})
     if (WAMR_BUILD_WASM_CACHE EQUAL 1)
       target_link_libraries(iwasm_shared INTERFACE boringssl_crypto)
     endif ()