SYS-3867 SYS-3865 Update benchmark for Summary and EthereumEvents

[nahuseyoum]

Proposed changes

This PR updates the benchmark for the Summary and Ethereum events pallet by taking into account MAX values of storage items.

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• Verify First, Write Last: In Substrate development, it is important that you always ensure preconditions are met and return errors at the beginning. After these checks have completed, then you may begin the function's computation.

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