ci/flake: golangci depguard disabled

Created by: bobheadxi

Test

golangci's depguard check

Example failure

https://buildkite.com/sourcegraph/sourcegraph/builds/139526#e6db285d-059a-440f-8cb0-fd15499a5a16

Disabling PR

https://github.com/sourcegraph/sourcegraph/pull/33182

Additional details

https://github.com/sourcegraph/devx-scratch/blob/main/2022/support/log.md#2022-03-25