Merge "Update go.mod and go.work to 1.21" into main am: 64823ec0

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2855212



Change-Id: I7ebc3a369f7b7b5f692eb520c970792fa15631c4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>