build(deps): bump github.com/urfave/cli/v2 from 2.26.0 to 2.27.1

Bumps [github.com/urfave/cli/v2](https://github.com/urfave/cli) from 2.26.0 to 2.27.1.
- [Release notes](https://github.com/urfave/cli/releases)
- [Changelog](https://github.com/urfave/cli/blob/main/docs/CHANGELOG.md)
- [Commits](https://github.com/urfave/cli/compare/v2.26.0...v2.27.1)

---
updated-dependencies:
- dependency-name: github.com/urfave/cli/v2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/urfave/cli/v2/help.go

@@ -278,7 +278,7 @@ func ShowCommandHelp(ctx *Context, command string) error {
 
 	if ctx.App.CommandNotFound == nil {
 		errMsg := fmt.Sprintf("No help topic for '%v'", command)
-		if ctx.App.Suggest {
+		if ctx.App.Suggest && SuggestCommand != nil {
 			if suggestion := SuggestCommand(ctx.Command.Subcommands, command); suggestion != "" {
 				errMsg += ". " + suggestion
 			}