Make setup_op_mainnet_without_ovm general purpose

[mattsse]

Describe the feature

This fills in dummy blocks:

reth/crates/optimism/cli/src/commands/init_state/bedrock.rs

Lines 12 to 20 in fa59bd5

	/// Creates a dummy chain (with no transactions) up to the last OVM block and appends the
	/// first valid Bedrock block.
	pub(crate) fn setup_op_mainnet_without_ovm<Provider>(
	provider_rw: &Provider,
	static_file_provider: &StaticFileProvider,
	) -> Result<(), eyre::Error>
	where
	Provider: StageCheckpointWriter + BlockWriter,
	{

which can be useful for other chains as well #12057

currently this has hardcoded bedrock constants

TODO

• refactor setup_op_mainnet_without_ovm so that it's general purpose

basically all of these constants should be an argument instead, or we transform all of this into a helper type instead

reth/crates/optimism/cli/src/commands/init_state/bedrock.rs

Line 43 in fa59bd5

fn append_bedrock_block(

cc @debjit-bw

Additional context

No response

[hoank101]

hey sir, can i do it?

[mattsse]

assigned

[debjit-bw]

Hey guys, unfortunately I need this particular feature urgently. @hoank101 if it might take you more than today, would you mind if I please pick this up?

[debjit-bw]

Hey @mattsse, I just raised the PR for this #12134