Include changelog

Author: assumptionsandg

.github/workflows/update-dependencies.yml

@@ -84,6 +84,9 @@ jobs:
           body: >
             This PR was created automatically to update ${{ inputs.openstack_version }}
             ${{ matrix.key }} to ${{ steps.latest_tag.outputs.latest_tag }}.
+
+            GitHub Release Changelog:
+            https://github.com/stackhpc/${{ matrix.key }}/releases/tag/${{ steps.latest_tag.outputs.latest_tag }}
           labels: |
             stackhpc-ci
             ${{ inputs.openstack_codename }}