feat: implement the env declaration modifier in WDL 1.2.
#1693
| Job | Run time |
|---|---|
| 14s | |
| 6m 20s | |
| 1m 54s | |
| 6m 9s | |
| 2m 30s | |
| 1m 13s | |
| 2m 59s | |
| 2m 28s | |
| 1m 0s | |
| 1m 29s | |
| 2m 44s | |
| 3m 59s | |
| 2m 19s | |
| 30s | |
| 2m 11s | |
| 6m 50s | |
| 44m 49s |