Add missing test launchers for JitRpcTest and JitDistAutogradTest (#32891)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32891
- Add JitDistAutoGradTest into fork/spawn test launcher
- Add JitRpcTest into fork/spawn test launcher
ghstack-source-id: 98900090
Test Plan:
```
buck test mode/dev-nosan //caffe2/test/distributed/rpc:rpc_fork
buck test mode/dev-nosan //caffe2/test/distributed/rpc:rpc_spawn
```
```
buck test mode/dev-nosan //caffe2/test/distributed/rpc:dist_autograd_fork
buck test mode/dev-nosan //caffe2/test/distributed/rpc:dist_autograd_spawn
```
```
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:rpc_fork
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:rpc_fork_thrift
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:rpc_spawn
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:rpc_spawn_thrift
```
```
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:dist_autograd_fork
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:dist_autograd_fork_thrift
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:dist_autograd_spawn
buck test mode/dev-nosan //caffe2/test/distributed/rpc/jit:dist_autograd_spawn_thrift
```
Differential Revision: D5785394
fbshipit-source-id: 335a85424d22f1a83874be81a8139499c9a68ce2
