leave nonce as is on success

Active on mainnet-beta (epoch 308), testnet (epoch 277) and devnet (epoch 297).

Introduced in solana-labs/solana PR #21246.

Feature id E8MkiWZNNPGU6n55jkGzyj8ghUmjCHRmDFdYYFYHxWhQ.

Vortex

• Consensus leaderboard
• Fees leaderboard
• Validators
• Stake pools
• Decentralization
• Client versions
• Cluster status
• Governance
• Feature gates
• SIMDs
• Activity
• API and AI usage