fix: label class error

src/main/java/com/gitee/jenkins/entity/Label.java

@@ -0,0 +1,14 @@
+package com.gitee.jenkins.entity;
+
+import lombok.Data;
+
+@Data
+public class Label {
+
+    private Integer id;
+
+    private String name;
+
+    private String color;
+
+}

src/main/java/com/gitee/jenkins/entity/PullRequest.java

@@ -40,7 +40,7 @@ public class PullRequest {
     /**
      * PR 标签
      */
-    private List<String> labels;
+    private List<Label> labels;
 
     private List<String> languages;