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

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

Change-Id: I9597e378e9ae4b734d373194b33373e63e2d6f85
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>