[Refactoring] Consolidate multiple create Tonic channel functions #3842

All 46 tests pass, 1 skipped in 2m 5s

5 files - 2 5 suites - 2 2m 5s ⏱️ - 2m 26s
47 tests ± 0 46 ✅ ± 0 1 💤 ±0 0 ❌ ±0
119 runs - 63 117 ✅ - 62 2 💤 - 1 0 ❌ ±0

Results for commit d661cd7. ± Comparison against earlier commit 6ef9a2a.