This should prevent config drift, some images we used as defaults are
months old at this point.

- Adds deneb to the input parameters and downstream package will support
deneb once the PR here in eth-network-package is merged

this is a clone of this PR:
https://github.com/kurtosis-tech/eth2-package/pull/92

Fixes #91

Changelog picked up from commits here:

refactor: Move args from struct to dict

@parithosh I'll merge this PR because you can run the previous version
executing the previous version like this `kurtosis run
github.com/kurtosis-tech/eth2-package@0fdb74368d5611c062960c71d3d1318cce70382a`

Can be merged after `service-name` gets merged.
Co-authored-by: Gyanendra Mishra <anomaly.the@gmail.com>

Closes #70

BREAKING-CHANGE: Uses the `plan` object. Users will have to update their
Kurtosis CLI to >= 0.63.0 and restart the engine

Refactor exec command

Updating configs for genesis delay and capella

added support for application protocol to eth2 package

updated struct to PortSpec