Merge "Use -language-version 1.9 in the kotlinKythe build rule" into main am:...

Merge "Use -language-version 1.9 in the kotlinKythe build rule" into main am: a7b916b5 am: c1ced44f

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/3263501



Change-Id: I593bc349b4821fe2d7a795fc7a803ef53c7ff4d8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>