整理：删除GitHub Actions旧的工作流（避免空间爆满限速）

.github/workflows/Delete_Old_Workflow_Runs.yml

@@ -2,6 +2,12 @@ name: Delete old workflow runs
 on:
   schedule:
     - cron: '0 0 * * *'
+  workflow_dispatch:
+    inputs:
+      root_sol:
+        description: "Workflow Title"
+        required: true
+        default: "Delete old workflow runs"
 
 jobs:
   del_runs:

.github/workflows/issue_check.yml

@@ -1,18 +0,0 @@
-name: No Free usage issue checker  # Action名字。可以自定义
-
-on:
-  issues:
-    types: [ opened, reopened ]  # 在issue打开和重新打开时调用
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-      - name: Check issue actor  # 步骤名字。可以自定义。
-        uses: fluttercandies/no-free-usage-action@v1.0.1
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}  # 由GitHub提供的临时Token，必须在此处进行传递，且必须为这个值。
-          forked: '--no-forked'
-          words: To support our project, please file the issue after you starred the repo. Thanks! 🙂