Swap github.com/golang/mock imports to go.uber.org/mock

Proprietary

Repoint every github.com/golang/mock import at go.uber.org/mock, which covers gomock, mockgen and mockgen/model. The fork's API is a superset of the original's, so call sites are unchanged; only the import path and its type attribution move.

org.openrewrite.golang.migration.SwapGolangMockImports
mod run . --recipe=org.openrewrite.golang.migration.SwapGolangMockImports

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.