chore(deps): update halohub/halo-pro docker tag to v2.20.6 (#2346)

* chore(deps): update halohub/halo-pro docker tag to v2.20.6

* Update app version [skip ci]

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: github-action update-app-version <githubaction@githubaction.com>

apps/halo/2.20.6/docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   halo:
-    image: halohub/halo-pro:2.20.5
+    image: halohub/halo-pro:2.20.6
     container_name: ${CONTAINER_NAME}
     restart: always
     networks: