feat: implement hss sign schedule function #44619

All 303 tests pass, 2 skipped in 30m 57s

81 files ±0 81 suites ±0 30m 57s ⏱️ + 3m 18s
305 tests ±0 303 ✅ ±0 2 💤 ±0 0 ❌ ±0
494 runs ±0 492 ✅ ±0 2 💤 ±0 0 ❌ ±0

Results for commit 83e1936. ± Comparison against earlier commit ac810e5.