[submodule] Update submodule sonic-mgmt-common to the latest HEAD aut…

…omatically (sonic-net#16586)

#### Why I did it
src/sonic-mgmt-common
```
* 4cfc882 - (HEAD -> master, origin/master, origin/HEAD) CVL error reporting enhancements (sonic-net#97) (5 hours ago) [Sachin Holla]
* 4a88fe7 - transformer infra optimization on uri path unmarshaling (sonic-net#99) (6 hours ago) [Balachandar Mani]
```
#### How I did it
#### How to verify it
#### Description for the changelog