Dedicated label for the Google AlloyDB for PostgreSQL service

[sky_vst]

As far as I can see we don't have the dedicated thread for the new AlloyDB service. I think it is a perfect time to start it.  

[Lauren_vdv]

Hi @sky_vst thank you for raising this! We've now added a label for AlloyDB. Appreciate it. 

[GlebO]

Great.