fix TagBot (#377)

closed #375

Author: shravanngoswamii

.github/workflows/TagBot.yml

@@ -4,6 +4,9 @@ on:
     types:
       - created
   workflow_dispatch:
+    inputs:
+      lookback:
+        default: "3"
 jobs:
   TagBot:
     if: github.event_name == 'workflow_dispatch' || github.actor == 'JuliaTagBot'
@@ -12,4 +15,7 @@ jobs:
       - uses: JuliaRegistries/TagBot@v1
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          ssh: ${{ secrets.DOCUMENTER_KEY }}
+          ssh: ${{ secrets.DOCUMENTER_KEY }}
+          subdir: JuliaBUGS
+          lookback: ${{ github.event.inputs.lookback }}
+