fix: get previous pr info

Signed-off-by: hlts2 <[email protected]>

.github/workflows/backport-deps.yaml

@@ -45,12 +45,12 @@ jobs:
           git_commit_gpgsign: true
       - name: Fetch PR info
         run: |
-          git checkout main
           gh pr list --limit 10 --json number,title,body,labels,headRefName,headRefOid,mergeCommit --state merged | \
             jq --arg oid "${GITHUB_SHA}" '.[] | select(.mergeCommit.oid == $oid)' > ${FETCHED_GITHUB_INFO_PATH}
           cat ${FETCHED_GITHUB_INFO_PATH}
 
           echo "------"
+          gh pr list --limit 10 --json number,title,body,labels,headRefName,headRefOid,mergeCommit --state merged
           git branch -a
           echo "------"
           echo ${GITHUB_SHA}