ci: Fix commit message for update-dp workflow, add delay

The delay is to give time to CI runners to build and publish the new
compile-env packages.

Alternatively, we could trigger the workflow when new packages are
published, but:

- I'm not sure the action would effectively trigger, given that the
  package is already created and pushed by a GitHub workflow run (I
  think it disables "recursive" actions, like when automated PRs don't
  trigger CI runs, to prevent infinite loops.

- It's more involved to figure out when to run: only on release builds
  (that take longer than debug builds)? And only on packages from
  commits that are present in the main branch? Doable, but more work.

Signed-off-by: Quentin Monnet <qmo@qmon.net>

Author: qmonnet

.github/workflows/update-dp.yml

@@ -45,6 +45,10 @@ jobs:
         run: |
           ./scripts/bump.sh
 
+      - name: "Give time for new packages to be published"
+        run: |
+          sleep 45
+
       - name: "Generate GitHub App token for the dataplane repository"
         id: "app-token"
         uses: "actions/create-github-app-token@v1"
@@ -63,13 +67,17 @@ jobs:
             automated
             dependencies
           signoff: "true"
-          commit-message: "bump(dpdk-sys): automated bump of dpdk-sys"
-          sign-commits: "true"
-          body: |
+          commit-message: |
+            bump(dpdk-sys): automated bump of dpdk-sys
+
             Automated bump from dpdk-sys,
             triggered by push to 'main' in source repository.
 
-            Commit: ${{ github.sha }}
+            Commit: githedgehog/dpdk-sys@${{ github.sha }}
+          sign-commits: "true"
+          body: |
+            Automated bump from dpdk-sys
+            Commit: githedgehog/dpdk-sys@${{ github.sha }}
 
       - name: "Setup tmate session for debug"
         if: ${{ failure() && github.event_name == 'workflow_dispatch' && inputs.debug_enabled }}