[feature][issue-template] Update default version to 5.1.0 and adjust version options in NEW-ISSUE.yml

Author: wgzhao

.github/ISSUE_TEMPLATE/NEW-ISSUE.yml

@@ -42,18 +42,14 @@ body:
         - 如果您的版本不在列表中，请选择 "4.1.4 or older" 并在问题描述中补充准确的版本号。  
           *If your version is not listed, select "4.1.4 or older" and specify the exact version in the description.*
       options:
-        - 5.0.0 (Default)
+        - 5.1.0 (Default)
+        - 5.0.0
         - 4.3.0
         - 4.2.4
         - 4.2.3
         - 4.2.2
         - 4.2.1
-        - 4.2.0
-        - 4.1.8
-        - 4.1.7
-        - 4.1.6
-        - 4.1.5
-        - 4.1.4 or older
+        - 4.2.0 or older
     validations:
       required: true