fix: wrong doc dir in ci

.github/workflows/fast_forward.yml

@@ -86,7 +86,7 @@ jobs:
       - name: Copy the changelogs from pr message to latest.md
         if: ${{ env.MERGE_STATUS == 'clean' }}
         run: |
-          cd ./docs/changelogs
+          cd ./doc/changelogs
           echo "$ISSUE_BODY" > pr_msg.txt
           python copy_changelogs_to.py pr_msg.txt latest.md > ../../response.txt
           cat ../../response.txt
@@ -101,7 +101,7 @@ jobs:
           if [[ "$( tail ./response.txt -n 1 )" = "No changes to write\!" ]] || [[ "$( tail ./response.txt -n 1 )" =~ "File \`(.*?)\` not found\!" ]]; then
             echo "COMMENT=${{ env.COMMENT }}\nNo changelogs found..." >> $GITHUB_ENV
           else
-            git add docs/changelogs/latest.md
+            git add doc/changelogs/latest.md
             git commit -m "chore(ff ci): add changelogs from #${{ github.event.issue.number }} to CHANGELOG.md"
             echo "COMMENT=${{ env.COMMENT }}\nCopied the changelogs from pull request body to doc/CHANGELOG.md..." >> $GITHUB_ENV
           fi