ci: use more precise go generate regex

Author: qdm12

.github/workflows/ci.yml

@@ -88,7 +88,7 @@ jobs:
         shell: bash
         run: |
           grep -lr -E '^// Code generated by MockGen\. DO NOT EDIT\.$' . | xargs -r rm
-          go generate -run "mockgen" ./...
+          go generate -run "go.uber.org/mock/mockgen" ./...
           git diff --exit-code
       - run: ./scripts/build.sh evm
         shell: bash