GA: 完善main.user.js_version_update.yaml逻辑

1. `最近提交是否存在tag`代替`比较最近tag的提交和最近提交的sha值`
2. 比较上次发布的`main.user.js`的提交时间戳与上次的tag对应的提交时间戳,
   当大于时: 使用上次发布的`main.user.js`的提交中的`locals.js`与当前(最近提交)比较
   当小于时: 使用上次的tag对应的提交中的`locals.js`与当前(最近提交)比较

.github/workflows/main.user.js_version_update.yaml

@@ -14,33 +14,40 @@ jobs:
         with:
           fetch-tags: true
 
-      - name: Check if commit is ahead of latest tag
+      - name: Test if locals.js has changed since the last release
         run: |
-          LATEST_TAG_COMMIT_SHA=$(git rev-list --tags --max-count=1)
-          LAST_COMMIT_SHA=${{ github.sha }}
-          if [ "$LAST_COMMIT_SHA" != "$LATEST_TAG_COMMIT_SHA" ]; then
-            echo "AHEAD=true" >> $GITHUB_ENV
-          else
-            echo "AHEAD=false" >> $GITHUB_ENV
-          fi
+          # 最近提交是否存在tag
+          if [ ! "$(git tag --contains ${{ github.sha }})" ]; then
+            # 获得最近以`main.user.js Update to version`开头的提交的sha
+            release_commit_sha=$(git log --grep="^main.user.js Update to version" -n 1 --pretty=format:"%H")
+            # 对应的时间戳
+            release_commit_timestamp=$(git show -s --format=%ct $release_commit_sha)
 
-      - name: Get last commit message
-        run: |
-          LAST_COMMIT_MESSAGE=$(git log -1 --pretty=format:"%s")
-          echo "LAST_COMMIT_MESSAGE=$LAST_COMMIT_MESSAGE" >> $GITHUB_ENV
+            # 最近的tag的时间戳
+            latest_tag_commit_sha=$(git rev-list --tags --max-count=1)
+            latest_tag_commit_timestamp=$(git show -s --format=%ct $latest_tag_commit_sha)
+
+            if [ $release_commit_timestamp -gt $latest_tag_commit_timestamp ]; then
+              ref=$release_commit_sha
+            else
+              ref=$latest_tag_commit_sha
+            fi
+
+            git diff --quiet --exit-code $ref locals.js || \
+            echo "LOCALS_JS_IS_CHANGED=true" >> $GITHUB_ENV
+          fi
 
       - name: Update version in main.user.js
         if: |
-          ${{ env.AHEAD == 'true' &&
-              !startsWith(env.LAST_COMMIT_MESSAGE, 'main.user.js Update to version') }}
+          ${{ env.LOCALS_JS_IS_CHANGED == 'true' }}
         run: |
           sed -i -E "s/(@version\s*[0-9]+\.[0-9]+\.[0-9]+)(-[0-9]{4}-[0-9]{2}-[0-9]{2})?/\
           \1-$(TZ='Asia/Shanghai' date +'%Y-%m-%d')/" main.user.js
           git diff --quiet --exit-code main.user.js || \
           echo "MAIN_USER_JS_IS_CHANGED=true" >> $GITHUB_ENV
 
       - name: Commit and push main.user.js
-        if: ${{ env.AHEAD == 'true' &&
+        if: ${{ env.LOCALS_JS_IS_CHANGED == 'true' &&
                 env.MAIN_USER_JS_IS_CHANGED == 'true' }}
         run: |
           bash script/ci_commit_with_signature.sh \