WSL v1 is still not supported. However, there is a notification suggesting a hack.
Previously, no notification was shown and git was detected on a host machine producing
"detected dubious ownership" errors.
Also introduced `UnsupportedWSLVersionException` preventing potential miss-leading
notifications in `WindowsExecutableProblemHandler` and hide VCS widget for the
unsupported WSL case.
(cherry picked from commit 9f86bd101b0d2612e116933d2ef086c4b7ae8148)
IJ-MR-151925
GitOrigin-RevId: 5ae4e5711900c7c14f1688f26b245b0f6ddb380f
da00fd4e04