fix!: Validation of SlashAcks fails due to marshaling to Bech32 (backport #1570)

[mergify]

This is an automatic backport of pull request #1570 done by Mergify.
Cherry-pick of 8604692 has failed:

On branch mergify/bp/release/v4.0.x/pr-1570
Your branch is up to date with 'origin/release/v4.0.x'.

You are currently cherry-picking commit 8604692.
  (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)

Changes to be committed:
	new file:   .changelog/unreleased/state-breaking/1570-slashack-bech32.md
	deleted:    .github/workflows/manual-e2e.yml
	modified:   .github/workflows/nightly-e2e.yml
	modified:   UPGRADING.md
	modified:   app/consumer-democracy/app.go
	modified:   app/consumer/ante/disabled_modules_ante_test.go
	modified:   app/consumer/ante/msg_filter_ante_test.go
	modified:   app/consumer/app.go
	renamed:    app/params/proto.go -> app/encoding/encoding.go
	modified:   app/params/config.go
	deleted:    app/params/doc.go
	deleted:    app/params/encoding.go
	deleted:    app/params/params.go
	deleted:    app/params/weights.go
	modified:   app/provider/app.go
	modified:   app/sovereign/app.go
	modified:   cmd/interchain-security-cd/cmd/root.go
	modified:   cmd/interchain-security-cd/main.go
	modified:   cmd/interchain-security-cdd/cmd/root.go
	modified:   cmd/interchain-security-cdd/main.go
	modified:   cmd/interchain-security-pd/cmd/root.go
	modified:   cmd/interchain-security-pd/main.go
	modified:   cmd/interchain-security-sd/cmd/root.go
	modified:   cmd/interchain-security-sd/main.go
	modified:   tests/e2e/actions.go
	modified:   tests/e2e/config.go
	modified:   tests/e2e/main.go
	modified:   tests/e2e/state.go
	modified:   tests/e2e/steps.go
	modified:   tests/e2e/steps_consumer_misbehaviour.go
	modified:   tests/e2e/steps_downtime.go
	modified:   tests/e2e/steps_start_chains.go
	modified:   tests/e2e/testnet-scripts/fork-consumer.sh
	modified:   tests/e2e/testnet-scripts/sovereign-genesis.json
	modified:   x/ccv/consumer/keeper/keeper.go
	modified:   x/ccv/consumer/keeper/relay.go
	modified:   x/ccv/consumer/keeper/relay_test.go
	modified:   x/ccv/consumer/keeper/validators.go
	modified:   x/ccv/types/utils.go
	modified:   x/ccv/types/wire.go
	modified:   x/ccv/types/wire_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	added by them:   .changelog/v4.0.0/bug-fixes/1570-slashack-bech32.md

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

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