fix: auto tag get email failed

Replaced action to get email from GitHub username with a script that reads email from debian/changelog. 

原因为github 获取email的api接口目前不可用。

Author: hudeng-go

.github/workflows/auto-tag.yml

@@ -121,10 +121,9 @@ jobs:
       - name: get email
         if: github.event.pull_request.merged
         id: get-email
-        uses: evvanErb/get-github-email-by-username-action@v2.0
-        with:
-          github-username: '${{ github.event.pull_request.user.login }}'
-          token: '${{ steps.get-token.outputs.app_token }}'
+        run: |
+          echo "read email from debian/changelog"
+          echo "email=$(grep -m1 '^ -- ' debian/changelog | sed 's/.*<\([^>]*\)>.*/\1/')" >> $GITHUB_OUTPUT
 
       - name: Create tag
         if: github.event.pull_request.merged