ci: fix goimports lint
Created by: mrnugget
See error here: https://github.com/sourcegraph/src-cli/actions/runs/5948515857/job/16132445754#step:4:21
Test plan
- N/A
Created by: mrnugget
See error here: https://github.com/sourcegraph/src-cli/actions/runs/5948515857/job/16132445754#step:4:21