### Why I did it
1. Protobuf 3.21 has been released in the Debian bookworm
2. Update submodule sonic-swss and sonic-dash-api because they include related updates.
##### Work item tracking
- Microsoft ADO **(number only)**:
#### How I did it
1. In the protobuf.mk, If it isn't bullseye, ignore to compile the protobuf package
2. Move sonic-swss commits:
```
fd852084 (HEAD, origin/master, origin/HEAD) [dashrouteorch]: Rename dash route namespace (#2966)
```
3. Move sonic-dash-api and move build chain to its submodule
```
d4448c7 (HEAD, origin/master, origin/HEAD, master) [azp]: Add multi-platform artifacts (#11)
8a5e5cc [debian]: Add debian package (#10)
d96163a [misc]: Add dash utils and its tests (#9)
```
#### How to verify it
Check Azp
#### Why I did it
The testcases in sonic-mgmt need the packages of protobuf and dashapi
##### Work item tracking
- Microsoft ADO **(number only)**:
#### How I did it
Because the docker of sonic-mgmt is based on ubuntu20.04, it cannot directly install the packages compiled by slave due to dependency issues. Download related packaged directly from Azp.
#### How to verify it
Check azp stats.
Why I did it
For the DASH scenario, the APP_DB will be optimized by protobuf message for less memory consumption.
How I did it
Download the Debian package of protobuf 3.21.12 and create a corresponding rule for building it.
Add a submodule of sonic-dash-api and generated its Debian package which includes C++ library and Python library
How to verify it
Check artifacts of Azp that the protobuf-related and dash-api deb packages should be generated.
Signed-off-by: Ze Gan <ganze718@gmail.com>
