Reduce logging when running demo via docker-compose

[abewley-homegrid]

The port in the demo lists localhost:8080, but you need to browse to localhost:8085.

Also, at startup there are a bazillion messages like, you miss out other important messages:

feldera-pipeline-manager-1 | 2023-08-26 00:52:47 INFO [manager] 172.21.0.5 "GET /v0/programs/018a2f4f-6e36-7d07-a564-e39163a283f1 HTTP/1.1" 200 7646 "-" "python-httpx/0.24.1" 0.001421

[lalithsuresh]

Thanks @abewley-homegrid. The port mappings should already be fixed by 7a334fb

We do need to revisit the default log levels. These ones are produced by actix and are indeed noisy.

[ryzhyk]

Hey @abewley-homegrid! Thanks for the feedback. Yep, we definitely need to slow down are logging :)

[lalithsuresh]

Fixed by #581