[Application] feat: Add past delegation proofs

[red-0ne]

Summary

This PR adds support for old delegations verification by:

• Update Application proto to add undelegations map
• Adding a map of session end block heights to undelegations updated at undelegation time
• EndBlocker procedure that prunes old delegations past a retention time
• Pass in target block height to the ring client to generate the right gateway list at the provided block height
• Fix ring cache invalidation
• Fix the block hash used to generate the proof
• Fix account querier returning account with nil pub keys (accounts created at genesis time)
• Remove unused pubkey client code

1129 LOC out of 1314 are autogenerated pulsar code

Issue

• 476

Type of change

Select one or more:

• [x] New feature, functionality or library
• [x] Bug fix
• [ ] Code health or cleanup
• [ ] Documentation
• [ ] Other (specify)

Testing

Documentation changes (only if making doc changes)

• [ ] make docusaurus_start; only needed if you make doc changes

Local Testing (only if making code changes)

• [x] Unit Tests: make go_develop_and_test
• [x] LocalNet E2E Tests: make test_e2e
• See quickstart guide for instructions

PR Testing (only if making code changes)

• [ ] DevNet E2E Tests: Add the devnet-test-e2e label to the PR.
  • THIS IS VERY EXPENSIVE, so only do it after all the reviews are complete.
  • Optionally run make trigger_ci if you want to re-trigger tests without any code changes
  • If tests fail, try re-running failed tests only using the GitHub UI as shown here

Sanity Checklist

• [x] I have tested my changes using the available tooling
• [x] I have commented my code
• [x] I have performed a self-review of my own code; both comments & source code
• [ ] I create and reference any new tickets, if applicable
• [ ] I have left TODOs throughout the codebase, if applicable

[Olshansk]

@red-0ne Confirming that this is not ready for initial review yet. Right?

[red-0ne]

@red-0ne Confirming that this is not ready for initial review yet. Right?

It is, just lacking E2E tests from the previous PR to be ported to this one

[github-actions[bot]]

The CI will now also run the e2e tests on devnet, which increases the time it takes to complete all CI checks. If you just created a pull request, you might need to push another commit to produce a container image DevNet can utilize to spin up infrastructure. You can use make trigger_ci to push an empty commit.