mod: bump google.golang.org/appengine/v2 from 2.0.5 to 2.0.6#12

dependabot[bot] wants to merge 1 commit intomasterdvyukov/syzkaller:masterfrom

dependabot/go_modules/google.golang.org/appengine/v2-2.0.6dvyukov/syzkaller:dependabot/go_modules/google.golang.org/appengine/v2-2.0.6Copy head branch name to clipboard