chore(charts): increase rpc.gascap

[mycodecrafting]

Summary

Increase rpc.gascap to 550M

Background

The default rpc gas cap for read only rpc ops (eth_estimateGas and eth_call) is quite low (50M). Many infra providers set this much higher (Infura @ 300M and Alchemy @ 550M). Some protocols and contract views require a higher setting to function correctly, e.g, Uniswap V3 requires at least 150M for its off chain router.

Changes

• Increased rpc.gascap to from 50M 550M

Testing

N/A changing standard geth flag

[joroshiba]

Open question for me, this is already a value on the chart, so it's easily configurable. This is effectively changing the default. Do we change the default or do we just want to edit on a per deployment basis?

[mycodecrafting]

this is a good question and leads me to realize we are using the gasLimit value for 2 different things.

1. for the gasLimit in genesis header. Semantically, this should match the block gas limit, which we don't currently allow to change via configuration and is hard coded to 30M. and,
2. for the rpc.gascap flag which is a runtime flag and has nothing to do with genesis.

I propose that we:

1. Use the genesis gasLimit value for the genesis header but update it to be semantically correct (30M), and
2. Add rpcGasCap to config.geth in values with a default of 50M (the geth default) and can then bump it up on a per deployment basis.

Will update the PR with the above unless there is objection.

[joroshiba]

I believe we can already adjust the config value via the flags which are passed into the chart?