chore(x/staking): audit changes (backport #16795)

[mergify]

This is an automatic backport of pull request #16795 done by Mergify.
Cherry-pick of 9b237c7 has failed:

On branch mergify/bp/release/v0.50.x/pr-16795
Your branch is up to date with 'origin/release/v0.50.x'.

You are currently cherry-picking commit 9b237c718.
  (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:
	modified:   api/cosmos/staking/v1beta1/genesis.pulsar.go
	modified:   proto/cosmos/staking/v1beta1/genesis.proto
	modified:   x/staking/client/cli/query.go
	modified:   x/staking/keeper/abci.go
	modified:   x/staking/keeper/alias_functions.go
	modified:   x/staking/keeper/delegation.go
	modified:   x/staking/keeper/grpc_query.go
	modified:   x/staking/keeper/historical_info.go
	modified:   x/staking/keeper/keeper.go
	modified:   x/staking/keeper/migrations.go
	modified:   x/staking/keeper/msg_server.go
	modified:   x/staking/keeper/params.go
	modified:   x/staking/keeper/pool.go
	modified:   x/staking/keeper/power_reduction.go
	modified:   x/staking/keeper/query_utils.go
	modified:   x/staking/keeper/slash.go
	modified:   x/staking/keeper/test_common.go
	modified:   x/staking/keeper/unbonding.go
	modified:   x/staking/keeper/validator.go
	modified:   x/staking/types/genesis.pb.go
	modified:   x/staking/types/msg.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.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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