docs: update images (#5384)

Author: matthewelwell

docs/docs/deployment/index.md

@@ -72,7 +72,7 @@ We recommend running Flagsmith with [Docker](/deployment/hosting/docker). We hav
 The Flagsmith architecture is based around a REST API that is accessed by both SDK clients and the Flagsmith Dashboard
 Front End Web App.
 
-![Application Architecture](/img/self-hosted-architecture.svg)
+![Application Architecture](/img/architecture.svg)
 
 ## Dependencies
 

docs/docs/system-administration/architecture.md

@@ -4,7 +4,7 @@ title: Architecture
 
 ## Self Hosted / On Prem
 
-![Image](/img/self-hosted-architecture.svg)
+![Image](/img/architecture.svg)
 
 ## SaaS