Mark hawkbit documents as deprecated

Signed-off-by: Dylan Aïssi <dylan.aissi@collabora.com>

content/concepts/infrastructure/preparing-hawkbit-for-production.md

@@ -10,6 +10,7 @@ outputs = ["html", "pdf-in"]
 aliases = [
     "/concepts/preparing-hawkbit-for-production",
 ]
+status = "Deprecated"
 +++
 
 # Introduction

content/guides/infrastructure/deployment-management.md

@@ -14,6 +14,7 @@ aliases = [
 ]
 date = "2019-10-09"
 lastmod = "2021-08-04"
+status = "Deprecated"
 +++
 
 The Apertis distribution provides a number of routes for managing updates to