refactor: using slices.Contains to simplify the code

Signed-off-by: crystalstall <crystalruby@qq.com>

cmd/helm/repo_update.go

@@ -19,6 +19,7 @@ package main
 import (
 	"fmt"
 	"io"
+	"slices"
 	"sync"
 
 	"github.com/pkg/errors"
@@ -158,10 +159,5 @@ func checkRequestedRepos(requestedRepos []string, validRepos []*repo.Entry) erro
 }
 
 func isRepoRequested(repoName string, requestedRepos []string) bool {
-	for _, requestedRepo := range requestedRepos {
-		if repoName == requestedRepo {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(requestedRepos, repoName)
 }

cmd/helm/template.go

@@ -24,6 +24,7 @@ import (
 	"path"
 	"path/filepath"
 	"regexp"
+	"slices"
 	"sort"
 	"strings"
 
@@ -206,12 +207,7 @@ func newTemplateCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 }
 
 func isTestHook(h *release.Hook) bool {
-	for _, e := range h.Events {
-		if e == release.HookTest {
-			return true
-		}
-	}
-	return false
+	return slices.Contains(h.Events, release.HookTest)
 }
 
 // The following functions (writeToFile, createOrOpenFile, and ensureDirectoryForFile)