Update release version (#384)

Author: yankunhuang-pku

release.yml

@@ -16,8 +16,8 @@ variables:
   publishProject: "**/*Tool/*.csproj"
   functionalTests: "**/*FunctionalTests/*.csproj"
   buildConfiguration: 'Release'
-  major: 4
-  minor: 6
+  major: 5
+  minor: 0
   patch: 0
   buildnum: $[counter(format('{0}.{1}.{2}',variables['major'],variables['minor'], variables['patch']), 1)]
   version: $(major).$(minor).$(patch).$(buildnum)