tests: fixing dependencies that brake tests in go.1.15.15

[lavacat]

• retry_interceptor_test causes:
  clientv3/naming/grpc.go:25:2: module google.golang.org/grpc@latest found (v1.46.0),
  but does not contain package google.golang.org/grpc/naming
  etcd not compatible with grpc v1.30.0 #12124

Please read https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md#contribution-flow.

[ahrtr]

Thanks @lavacat for the fix. Please breakdown this PR into two. The first is to fix the typos in clientv3/retry_interceptor_test.go, and the second one is to bump bbolt version.

We can get first one merged firstly, and ask for opinions from other maintainers as well for the second one.

[lavacat]

@ahrtr updated pr with only retry_interceptor_test fix.

test (1.15.15, linux-amd64-fmt) is still failing with errors I can't reproduce locally using golang:1.15 docker image. I suspect there are some differences in my env and GitHub Actions ubuntu-latest image.

[ahrtr]

@ahrtr updated pr with only retry_interceptor_test fix.

test (1.15.15, linux-amd64-fmt) is still failing with errors I can't reproduce locally using golang:1.15 docker image. I suspect there are some differences in my env and GitHub Actions ubuntu-latest image.

Thanks. We can fix the other failures in a separate PR.