[submodule] Update submodule sonic-gnmi to the latest HEAD automatically (#17082)

#### Why I did it
src/sonic-gnmi
```
* a49ca56 - (HEAD -> 202305, origin/202305) Merge pull request #167 from zbud-msft/cherry-pick-fix-panic-202305 (11 hours ago) [StormLiangMS]
* 6ba1125 - Merge branch '202305' into cherry-pick-fix-panic-202305 (2 weeks ago) [Zain Budhwani]
* 3a0fbb9 - Fix build error (2 weeks ago) [Zain Budhwani]
* 7fad847 - Recover from potential panic when doing map to JSON serialization (#161) (2 weeks ago) [Zain Budhwani]
```
#### How I did it
#### How to verify it
#### Description for the changelog
This commit is contained in:
mssonicbld 2023-11-03 16:33:00 +08:00 committed by GitHub
parent 9ab60260a5
commit 80d9a9951a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

@ -1 +1 @@
Subproject commit a2a518de40a6dc9671e34710284b1152ad4b78b1
Subproject commit a49ca5614163a210c95dadb2116d5e487133de32