fix: enhanced reliability of eth RPC methods with null checks and retry mechanisms #9422

All 38 tests pass in 1m 57s

1 files - 23 21 suites - 352 1m 57s ⏱️ - 55m 45s
38 tests - 577 38 ✅ - 566 0 💤 - 4 0 ❌ - 7
38 runs - 861 38 ✅ - 846 0 💤 - 7 0 ❌ - 8

Results for commit f74fd2c. ± Comparison against earlier commit 454ffb0.