Update crt dependency to 0.6.3 (#74)

* Update crt dependency to 0.6.3

Author: JonathanHenson

aws-common-runtime/CMakeLists.txt

@@ -4,7 +4,7 @@ project(aws-crt)
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
 
 if(NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE Release)
+    set(CMAKE_BUILD_TYPE RelWithDebInfo)
 endif()
 
 include(ExternalProject)
@@ -18,5 +18,5 @@ set(AWS_DEPS_DOWNLOAD_DIR "${AWS_DEPS_BUILD_DIR}/downloads" CACHE PATH "Dependen
 message("install dir ${AWS_DEPS_INSTALL_DIR}")
 
 set(AWS_CRT_CPP_URL "https://github.com/awslabs/aws-crt-cpp.git")
-set(AWS_CRT_CPP_SHA "v0.6.2")
+set(AWS_CRT_CPP_SHA "v0.6.3")
 include(BuildAwsCrtCpp)