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

All 31 tests pass in 31s

1 files - 23 12 suites - 361 31s ⏱️ - 57m 11s
31 tests - 584 31 ✅ - 573 0 💤 - 4 0 ❌ - 7
31 runs - 868 31 ✅ - 853 0 💤 - 7 0 ❌ - 8

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