arm64: add some notes about the experimental new images (#12163)

Author: valentijnscholten

docs/content/en/open_source/upgrading/2.45.md

@@ -5,3 +5,5 @@ weight: -20250303
 description: No special instructions.
 ---
 There are no special instructions for upgrading to 2.45.x. Check the [Release Notes](https://github.com/DefectDojo/django-DefectDojo/releases/tag/2.45.0) for the contents of the release.
+
+Starting with release 2.45.0 Experimental Docker builds for `linux/arm64` are published with each release.

readme-docs/DOCKER.md

@@ -8,6 +8,8 @@ Although Docker Compose is one of the supported installation methods to deploy a
 
 [Configuration](https://docs.defectdojo.com/en/open_source/installation/configuration/) explains the different ways to adjust settings and environment variables.
 
+Docker images for `linux/amd64` are published to https://hub.docker.com/u/defectdojo. Expiremental builds for `linux/arm64` are available since 2.45.0.
+
 
 # Prerequisites