Support HTTP for master-worker communication.

[BalaBalaYi]

Is your feature request related to a problem? Please describe.
Considering the use of gRPC involves significant dependency issues, and there is a degree of uncertainty when using gRPC in multi-process and multi-threaded scenarios. Additionally, related issues might take a long time to be resolved. Currently, the gRPC interactions in DLRover are implemented at the control plane level, and even in large-scale scenarios, there are no extreme performance requirements. Therefore, there are plans to support an HTTP implementation as a replacement for the gRPC implementation.

Describe the solution you'd like
Support http for master-worker communication.

Describe alternatives you've considered
n/a

Additional context
n/a