Rename proto fields to be a bit more clear (backport #3112)

[mergify]

Changelist

Make slight change to governance message, this is not used yet so the change should be safe

Test Plan

Test cases

Author/Reviewer Checklist

• If this PR has changes that result in a different app state given the same prior state and transaction list, manually add the state-breaking label.
• If the PR has breaking postgres changes to the indexer add the indexer-postgres-breaking label.
• If this PR isn't state-breaking but has changes that modify behavior in PrepareProposal or ProcessProposal, manually add the label proposal-breaking.
• If this PR is one of many that implement a specific feature, manually label them all feature:[feature-name].
• If you wish to for mergify-bot to automatically create a PR to backport your change to a release branch, manually add the label backport/[branch-name].
• Manually add any of the following labels: refactor, chore, bug.

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This is an automatic backport of pull request #3112 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of b901a3b has failed:

On branch mergify/bp/release/protocol/v9.x/pr-3112
Your branch is up to date with 'origin/release/protocol/v9.x'.

You are currently cherry-picking commit b901a3bb.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   indexer/packages/v4-protos/src/codegen/dydxprotocol/affiliates/affiliates.ts
	both modified:   proto/dydxprotocol/affiliates/affiliates.proto
	both modified:   protocol/x/affiliates/keeper/keeper_test.go
	both modified:   protocol/x/affiliates/types/affiliates.pb.go
	both modified:   protocol/x/affiliates/types/constants.go

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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