build(deps): bump github.com/urfave/cli/v2 from 2.25.7 to 2.26.0

Bumps [github.com/urfave/cli/v2](https://github.com/urfave/cli) from 2.25.7 to 2.26.0.
- [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/v2.25.7...v2.26.0)

---
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/app.go

@@ -329,6 +329,9 @@ func (a *App) RunContext(ctx context.Context, arguments []string) (err error) {
 	a.rootCommand = a.newRootCommand()
 	cCtx.Command = a.rootCommand
 
+	if err := checkDuplicatedCmds(a.rootCommand); err != nil {
+		return err
+	}
 	return a.rootCommand.Run(cCtx, arguments...)
 }
 
@@ -455,30 +458,6 @@ func (a *App) handleExitCoder(cCtx *Context, err error) {
 	}
 }
 
-func (a *App) commandNames() []string {
-	var cmdNames []string
-
-	for _, cmd := range a.Commands {
-		cmdNames = append(cmdNames, cmd.Names()...)
-	}
-
-	return cmdNames
-}
-
-func (a *App) validCommandName(checkCmdName string) bool {
-	valid := false
-	allCommandNames := a.commandNames()
-
-	for _, cmdName := range allCommandNames {
-		if checkCmdName == cmdName {
-			valid = true
-			break
-		}
-	}
-
-	return valid
-}
-
 func (a *App) argsWithDefaultCommand(oldArgs Args) Args {
 	if a.DefaultCommand != "" {
 		rawArgs := append([]string{a.DefaultCommand}, oldArgs.Slice()...)