refactor: Use nats as default and clean up of readme #4455
| Job | Run time | 
|---|---|
| 2m 59s | |
| 1m 4s | |
| 31s | |
| 50s | |
| 1m 1s | |
| 34s | |
| 1m 3s | |
| 36s | |
| 25s | |
| 1m 6s | |
| 34s | |
| 1m 19s | |
| 36s | |
| 39s | |
| 36s | |
| 1m 13s | |
| 23m 39s | |
| 38m 45s | 
| Job | Run time | 
|---|---|
| 2m 59s | |
| 1m 4s | |
| 31s | |
| 50s | |
| 1m 1s | |
| 34s | |
| 1m 3s | |
| 36s | |
| 25s | |
| 1m 6s | |
| 34s | |
| 1m 19s | |
| 36s | |
| 39s | |
| 36s | |
| 1m 13s | |
| 23m 39s | |
| 38m 45s |