ci: add dump_packages to weekly_ci

Add dump_packages callback to weekly_ci so we can get
lists of packages for ostree builds.

Signed-off-by: Rich Megginson <rmeggins@redhat.com>

.github/dependabot.yml

@@ -4,4 +4,6 @@ updates:
   - package-ecosystem: github-actions
     directory: /
     schedule:
-      interval: monthly
+      interval: weekly
+    commit-message:
+      prefix: ci

.github/workflows/weekly_ci.yml

@@ -7,7 +7,7 @@ on:  # yamllint disable-line rule:truthy
     - cron: 0 20 * * 6
 env:
   BRANCH_NAME: weekly-ci
-  COMMIT_MESSAGE: This PR is to trigger periodic CI testing
+  COMMIT_MESSAGE: "ci: This PR is to trigger periodic CI testing"
   BODY_MESSAGE: >-
     This PR is for the purpose of triggering periodic CI testing.
     We don't currently have a way to trigger CI without a PR,
@@ -41,6 +41,11 @@ jobs:
           git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
           git checkout ${{ env.BRANCH_NAME }} || git checkout -b ${{ env.BRANCH_NAME }}
           git rebase main
+          if [ ! -d tests/callback_plugins ]; then
+            mkdir -p tests/callback_plugins
+          fi
+          curl -L -s -o tests/callback_plugins/dump_packages.py https://raw.githubusercontent.com/linux-system-roles/auto-maintenance/main/callback_plugins/dump_packages.py
+          git add tests/callback_plugins
           git commit --allow-empty -m "${{ env.COMMIT_MESSAGE }}"
           git push -f --set-upstream origin ${{ env.BRANCH_NAME }}