Skip appveyor builds for automated updates [ci skip]

.appveyor.yml

@@ -9,6 +9,8 @@ branches:
 install:
   # Set depth to 50 because the commit we need may not be at the tip of the branch configured in .gitmodules
   - git submodule update --init --depth=50 --recursive
+skip_commits:
+  message: /.*\[auto-updated:.*/
 build_script:
   - ps: .\run.ps1 default-build /t:ComputeGraph
 clone_depth: 1