Osmocli: Fix lines of code overhead + speed of CLI tests (backport #3647)

[mergify]

This is an automatic backport of pull request #3647 done by Mergify.
Cherry-pick of 1986ad2 has failed:

On branch mergify/bp/v13.x/pr-3647
Your branch is up to date with 'origin/v13.x'.

You are currently cherry-picking commit 1986ad22.
  (fix conflicts and run "git cherry-pick --continue")
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Changes to be committed:
	modified:   CHANGELOG.md
	new file:   osmoutils/osmocli/cli_tester.go
	modified:   osmoutils/osmocli/query_cmd_wrap.go
	modified:   osmoutils/osmocli/tx_cmd_wrap.go
	modified:   x/gamm/client/cli/cli_test.go
	modified:   x/gamm/client/cli/flags.go
	modified:   x/gamm/client/cli/query.go
	modified:   x/gamm/client/cli/tx.go
	deleted:    x/gamm/client/testutil/test_helpers.go
	modified:   x/incentives/client/cli/cli_test.go
	modified:   x/incentives/client/cli/query.go
	modified:   x/lockup/client/cli/cli_test.go
	modified:   x/lockup/client/cli/query.go
	deleted:    x/lockup/client/cli/query_test.go
	modified:   x/lockup/client/cli/tx.go
	deleted:    x/lockup/client/testutil/test_helpers.go
	deleted:    x/pool-incentives/client/cli/cli_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   osmoutils/cli_helpers.go

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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