CI: Use event issue number

HaoZeke · web-flow · commit a5c01e42b1e0 · 2023-08-13T22:45:00.000Z
diff --git a/.github/workflows/slashdot_trigger.yml b/.github/workflows/slashdot_trigger.yml
@@ -13,4 +13,4 @@ jobs:
           commands: |
             trigger-asv
           static-args: |
-            pr_number=${{ github.event.number }}
+            pr_number=${{ github.event.issue.number }}
