Convert release-branches.py and update-required-checks.sh to TypeScript
#7440
| Job | Run time |
|---|---|
| 1m 20s | |
| 1m 12s | |
| 1m 20s | |
| 5m 13s | |
| 1m 7s | |
| 1m 3s | |
| 2m 32s | |
| 58s | |
| 1m 6s | |
| 1m 3s | |
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| 17m 57s |