Fix http2 authority header in multiple endpoints scenario and bump up grpc from v1.51.0 to v1.52.0
#8616
| Job | Run time |
|---|---|
| 6m 41s | |
| 6m 41s |
v1.51.0 to v1.52.0
#8616
| Job | Run time |
|---|---|
| 6m 41s | |
| 6m 41s |