Update go/skia.org/infra in go.mod/go.sum

To pick up canary.go task driver change in buildbot repo

Updated with:
$ go get go.skia.org/infra@74751ee0f13f8080249362ef3f4d09021e54d9c1
$ go mod download
$ make -C infra/bots train

Bug: skia:12657
Change-Id: I3f42dd6a8041d2c84903e736e76029c198c811f7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/473144
Reviewed-by: Eric Boren <borenet@google.com>
3 files changed