chore: Reduce opbnb block time and use exp retry

[memoyil]

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PR-Codex overview

This PR focuses on refactoring the retry mechanism for transaction handling across various components by replacing the retry function with retryExp, improving the handling of average block times, and ensuring the correct use of UnifiedChainId in block time records.

Detailed summary

• Changed retry to retryExp in multiple files for enhanced retry logic.
• Updated bufferedAvgBlockTime calculations to use AVERAGE_CHAIN_BLOCK_TIMES with fallback to BSC_BLOCK_TIME.
• Adjusted block time values for ChainId.OPBNB and ChainId.OPBNB_TESTNET.
• Added new entries for NonEVMChainId.SOLANA and NonEVMChainId.APTOS in AVERAGE_CHAIN_BLOCK_TIMES.
• Modified retry parameters across various components to use consistent delay and base values.

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