[sonic-snmpagent]: Advance submodule (#8176)

Includes below commits
```
946e5cf 2021-07-12 | Fix: SonicV2Connector behavior change: get_all will return empty dict if (#226) [Qi Luo]
```
This commit is contained in:
Qi Luo 2021-07-14 00:07:15 -07:00 committed by GitHub
parent e01a5f86c0
commit 30e9c0e7d3
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@ -1 +1 @@
Subproject commit 748b545f396f132b8decb206d2f6a5bcf5445cac
Subproject commit 946e5cf2344da47d0cdf8de5d31d70b0484664ef