fix(cmd): correct the short description of kk create config

[redscholar]

/kind bug

What does this PR do

Fix the incorrect Short help description of the kk create config command.

Background / Motivation

kk create config only generates a default cluster configuration file
(config-<version>.yaml) or prints it to stdout. However, its Short help
text was copied from create cluster and wrongly read "Create a Kubernetes or
KubeSphere cluster", which misleads users into thinking the command creates a
cluster.

Implementation

Correct the Short string of the config subcommand to describe what it
actually does.

Key Changes

File	What changed
cmd/kk/app/builtin/create.go	Fix the Short description of the create config command

Impact

• Affected modules: kubekey CLI (builtin commands)
• API changes: N/A
• Database / state changes: N/A
• Config changes: N/A
• Dependency changes: N/A

Breaking Changes

None

Which issue(s) this PR fixes:

Fixes #

Testing

Verification performed

• Unit tests pass (make test)
• Integration / E2E tests pass
• Manual verification

Steps to verify

1. Build the CLI: go build -tags builtin ./cmd/kk/app/builtin/
2. Run kk create config --help
3. Expected: description reads "Create a cluster configuration file"

Test coverage

No tests added. This is a help-text fix with no functional change; the
builtin package compiles cleanly under -tags builtin.

Rollback

Plain revert of the single-line change.

Does this PR introduce a user-facing change?

Correct the help description of the `kk create config` command.

Checklist

• Code self-reviewed, no debug code or commented-out dead code
• No secrets, tokens, or .env files committed
• Commit message follows Conventional Commits
• All commits have DCO sign-off (Signed-off-by)
• All commits are GPG-signed (GitHub shows Verified)
• Tests added or updated
• Docs / CHANGELOG updated (if needed)
• Local lint and build pass (make build)
• Breaking changes marked above

Notes for Reviewer

Single-line help text correction; the previous text was a copy-paste from
create cluster.

[kubesphere-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: redscholar

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Details

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• OWNERS [redscholar]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud