Convert release-branches.py and update-required-checks.sh to TypeScript
#7341
| Job | Run time |
|---|---|
| 1m 28s | |
| 1m 20s | |
| 1m 12s | |
| 1m 28s | |
| 4m 24s | |
| 1m 28s | |
| 1m 16s | |
| 1m 32s | |
| 5m 56s | |
| 1m 29s | |
| 1m 25s | |
| 22m 58s |