Add Windows wamrc and iwasm build in release CI (#3857)

- For Windows, llvm libs need to cache more directories, so use a multi-line
  environment variable for paths
- Remove conditionally build directories `win32build`, just use `build` for all platform
- Add Windows wamrc and iwasm(disable lib pthread semaphore and fast jit for now)
  build in release CI

wamr-compiler/CMakeLists.txt

@@ -163,17 +163,10 @@ endif()
 # Enable LLVM
 if (NOT WAMR_BUILD_WITH_CUSTOM_LLVM)
   set (LLVM_SRC_ROOT "${PROJECT_SOURCE_DIR}/../core/deps/llvm")
-  if (WAMR_BUILD_PLATFORM STREQUAL "windows")
-    if (NOT EXISTS "${LLVM_SRC_ROOT}/win32build")
-      message (FATAL_ERROR "Cannot find LLVM dir: ${LLVM_SRC_ROOT}/win32build")
-    endif ()
-    set (CMAKE_PREFIX_PATH "${LLVM_SRC_ROOT}/win32build;${CMAKE_PREFIX_PATH}")
-  else()
-    if (NOT EXISTS "${LLVM_SRC_ROOT}/build")
-      message (FATAL_ERROR "Cannot find LLVM dir: ${LLVM_SRC_ROOT}/build")
-    endif ()
-    set (CMAKE_PREFIX_PATH "${LLVM_SRC_ROOT}/build;${CMAKE_PREFIX_PATH}")
+  if (NOT EXISTS "${LLVM_SRC_ROOT}/build")
+    message (FATAL_ERROR "Cannot find LLVM dir: ${LLVM_SRC_ROOT}/build")
   endif ()
+  set (CMAKE_PREFIX_PATH "${LLVM_SRC_ROOT}/build;${CMAKE_PREFIX_PATH}")
 endif ()
 
 find_package(LLVM REQUIRED CONFIG)