ci(changelog): update commit message template

1. Change the changelog pull request title to use a version bump subject.
2. Expand the generated commit message into title, content, and Log sections.
3. Align the generated content and Log text with the changelog update wording.

Log: Update the changelog workflow commit message template to match the required format.

ci(changelog): 更新提交信息模板

1. 将 changelog 拉取请求标题改为版本升级主题。
2. 将生成的提交信息扩展为标题、正文和 Log 三段格式。
3. 让生成的正文和 Log 文案符合 changelog 更新要求。

Log: 更新 changelog 流程的提交信息模板以匹配要求格式。

Author: mhduiy

.github/workflows/update-changelog.yml

@@ -284,8 +284,13 @@ jobs:
         with:
           token: ${{ steps.app_token.outputs.token }}
           branch: automation/update-changelog/${{ steps.prepare.outputs.safe_version }}
-          title: "chore: update changelog to ${{ steps.prepare.outputs.version }}"
-          commit-message: "chore: update changelog to ${{ steps.prepare.outputs.version }}"
+          title: "chore: bump version to ${{ steps.prepare.outputs.version }}"
+          commit-message: |
+            chore: bump version to ${{ steps.prepare.outputs.version }}
+
+            update changelog to ${{ steps.prepare.outputs.version }}
+
+            Log: update changelog to ${{ steps.prepare.outputs.version }}
           body: |
             Automated changelog update.