Merge "dicttoolkit: pin cpp_std to gnu++17" into main am: 4f396fb453 am: 489df8d31c

Original change: https://android-review.googlesource.com/c/platform/packages/inputmethods/LatinIME/+/2833210

Change-Id: I58e19cabcb483d7d39427dfd131a0429fbd4b263
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>