refac: made some attributes of VAEAlgorithmConfig optional
#916
| Job | Run time |
|---|---|
| 2m 2s | |
| 3m 30s | |
| 3m 36s | |
| 8m 40s | |
| 13m 5s | |
| 8m 30s | |
| 4m 41s | |
| 3m 0s | |
| 5m 50s | |
| 8m 52s | |
| 7m 7s | |
| 5m 52s | |
| 4m 15s | |
| 0s | |
| 1h 19m 0s |