https://go.dev/ref/mod#go-work-file advises against checking `go.work`
files because they can interfere with local development. We added the
workspace file in order to make `go test` and other tools work across
multiple modules. But it seems to cause weird issues with the
`go.work.sum` file being modified, etc.
So with this PR, we instead run all the `ci.go` commands for all modules
in the workspace manually.
1597d58fae