fix: enhanced reliability of eth RPC methods with null checks and retry mechanisms #8153

All 31 tests pass in 32s

1 files - 24 12 suites - 339 32s ⏱️ - 1h 8m 22s
31 tests - 583 31 ✅ - 560 0 💤 - 4 0 ❌ - 19
31 runs - 1 019 31 ✅ - 988 0 💤 - 9 0 ❌ - 22

Results for commit 936f1e9. ± Comparison against earlier commit 6f1bfda.