Convert release-branches.py and update-required-checks.sh to TypeScript
#9504
| Job | Run time |
|---|---|
| 1m 13s | |
| 1m 30s | |
| 1m 14s | |
| 2m 6s | |
| 1m 15s | |
| 2m 31s | |
| 9m 49s |