ENH: Apply clang-format to PR with tag action:ApplyClangFormat
ENH: Apply clang-format to PR with tag action:ApplyClangFormat

As documented on ITKApplyClangFormatAction[1] the branch has to be pushed
on the upstream repository so it won't work for forks.

[1](https://github.com/InsightSoftwareConsortium/ITKApplyClangFormatAction)

SimonRit/RTK,SimonRit/RTK,SimonRit/RTK,SimonRit/RTK