workflows/dco-report: use bot token

Update for openslide/.github#3.

Signed-off-by: Benjamin Gilbert <bgilbert@cs.cmu.edu>

Author: bgilbert

.github/workflows/dco-report.yml

@@ -6,10 +6,9 @@ on:
     types:
       - completed
 
-permissions:
-  pull-requests: write
-
 jobs:
   comment:
     name: Organization
     uses: openslide/.github/.github/workflows/dco-report.yml@main
+    secrets:
+      OPENSLIDE_BOT_TOKEN: ${{ secrets.OPENSLIDE_BOT_TOKEN }}