contracts-bedrock: check-l2 configurable url

Allows the URL to be configured via CLI params.

- `--rpc-url`

Also optionally accepts a chain id via CLI and asserts
that the remote chain id matches what is passed in via
CLI, only if a value is passed in via CLI.

- `--chain-id`

Can also skip the very long predeploy checking at the
beginning and add in some logs that ensure progress
is happening with `--skip-predeploy-check true`