Update TagBot config (#142)

Author: ToucheSir

.github/workflows/TagBot.yml

@@ -1,14 +1,28 @@
 name: TagBot
 on:
-  issue_comment:  # THIS BIT IS NEW
+  issue_comment:
     types:
       - created
   workflow_dispatch:
+    inputs:
+      lookback:
+        default: 3
+permissions:
+  actions: read
+  checks: read
+  contents: write
+  deployments: read
+  issues: read
+  discussions: read
+  packages: read
+  pages: read
+  pull-requests: read
+  repository-projects: read
+  security-events: read
+  statuses: read
 jobs:
   TagBot:
-    # THIS 'if' LINE IS NEW
     if: github.event_name == 'workflow_dispatch' || github.actor == 'JuliaTagBot'
-    # NOTHING BELOW HAS CHANGED
     runs-on: ubuntu-latest
     steps:
       - uses: JuliaRegistries/TagBot@v1