ci(workflow): 为自动合并动作添加MERGE_REMOVE_LABELS环境变量

Author: thep0y

.github/workflows/pr-check.yml

@@ -183,3 +183,4 @@ jobs:
         uses: pascalgn/automerge-action@v0.16.4
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          MERGE_REMOVE_LABELS: "automerge"