[infra] Update go.sum
[infra] Update go.sum

I ran "go build -i go.skia.org/infra/..." and this was the result. I've
added that as a step of UpdateGoDeps in
https://skia-review.googlesource.com/c/buildbot/+/267596

Change-Id: Id1494fb012209de1419d4b620c8e8983f2a4d4cd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/267616
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Commit-Queue: Eric Boren <0e499112533c8544f0505ea0d08394fb5ad7d8fa@google.com>

google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia