feat: use text/template.FuncMap

Signed-off-by: Bird <aflybird0@gmail.com>

pkg/util/template/render.go

@@ -14,7 +14,7 @@ func Render(name, templateStr string, variable any, funcMaps ...template.FuncMap
 	t := template.New(name).Option("missingkey=error").Delims("[[", "]]")
 
 	// use sprig functions such as "env"
-	t.Funcs(sprig.FuncMap())
+	t.Funcs(sprig.TxtFuncMap())
 	for _, funcMap := range funcMaps {
 		t.Funcs(funcMap)
 	}