feat: add a new command to list supported algos (backport #14655)

[mergify]

This is an automatic backport of pull request #14655 done by Mergify.
Cherry-pick of 5233d5e has failed:

On branch mergify/bp/release/v0.47.x/pr-14655
Your branch is up to date with 'origin/release/v0.47.x'.

You are currently cherry-picking commit 5233d5e67.
  (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:   client/flags/flags.go
	modified:   client/keys/add.go
	modified:   client/keys/add_ledger_test.go
	modified:   client/keys/add_test.go
	modified:   client/keys/list.go
	modified:   client/keys/list_test.go
	modified:   client/keys/root.go
	modified:   client/keys/root_test.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md
	both modified:   simapp/simd/cmd/testnet.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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[julienrbrt]

tACK.