Allow higher provider gas limit than block gas limit

[philipglazman]

Operators can set a higher provider gas limit for eth_call and eth_estimateGas and meter usage themselves.

[Copilot]

Pull Request Overview

This PR removes gas limit restrictions that previously capped provider gas limits to the block gas limit for eth_call and eth_estimateGas operations. This allows operators to configure higher gas limits for these operations and manage gas usage independently.

• Removes minimum constraint between provider gas limit and block gas limit in gas estimation
• Removes minimum constraint between provider gas limit and block gas limit in eth_call preparation
• Removes explicit gas limit validation that rejected transactions with gas limits exceeding the block gas limit

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
monad-rpc/src/handlers/eth/gas.rs	Removes provider gas limit constraint in gas estimation
monad-rpc/src/handlers/eth/call.rs	Removes provider gas limit constraint in call preparation
monad-ethcall/src/lib.rs	Removes gas limit validation that enforced block gas limit ceiling

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[eerkaijun]

in https://github.com/category-labs/monad-bft/blob/pg/gas-provider-limit/monad-rpc/src/handlers/eth/call.rs#L487 we are still upper bounding by block gas limit, will need to remove that upper bound too i think

[eerkaijun]

if provider gas limit is larger than block gas limit, will execution respect the provider gas limit?