Changes

feat(scripts/ops): add script static-prow-jobs.ts (#2720)

Run with:
```bash
deno run --allow-net ./scripts/ops/statics-prow-jobs.ts
```

results:
```csv
repo, branch, job_type, job_name, success_count, failure_count, success_rate, avg_timecost_minutes
pingcap/tiflow, master, presubmit, pingcap/tiflow/pull_dm_integration_test, 47, 25, 0.6527777777777778, 35.430851063829785
pingcap/tidb, master, presubmit, pingcap/tidb/ghpr_build, 270, 120, 0.6923076923076923, 32.98759259259259
pingcap/tidb, master, presubmit, pingcap/tidb/pull_integration_ddl_test, 373, 45, 0.8923444976076556, 15.359830205540662
pingcap/tidb, master, presubmit, pingcap/tidb/ghpr_check, 298, 130, 0.6962616822429907, 19.887639821029083
pingcap/tidb, master, presubmit, pingcap/tidb/ghpr_check2, 283, 122, 0.6987654320987654, 27.266902237926974
pingcap/tidb, master, presubmit, pingcap/tidb/ghpr_mysql_test, 372, 60, 0.8611111111111112, 13.632437275985664
pingcap/tidb, master, presubmit, pingcap/tidb/ghpr_unit_test, 260, 223, 0.5383022774327122, 15.202307692307691
pingcap/tidb, master, presubmit, pingcap/tidb/pull_mysql_client_test, 440, 32, 0.9322033898305084, 6.793333333333333
```

Signed-off-by: wuhuizuo <wuhuizuo@126.com>
 (commit: d80e482)