docs: add git clone to deployment diagram

docs/deployment.plantuml

@@ -15,28 +15,31 @@ component Kubernetes {
 }
 interface "Kubernetes API\n(HTTPS)" as K8SAPI
 
-database Postgres
-
 component GitHub
 interface "GitHub API\nhttps://api.github.com" as GitHubAPI
+interface "Git\nhttps://github.com" as Git
+
+database Postgres
 
 Runboat -- Webhook
 API -- Runboat
 
-Webhook <-- GitHub : "Events:\npush,\npull_request"
+Git -- GitHub
 GitHubAPI -- GitHub
-Runboat --> GitHubAPI : "Status updates"
+Webhook <-- GitHub : "Events:\npush,\npull_request"
+Runboat --> GitHubAPI : "Get Commit Info,\nSend Status updates"
 
 RunboatUI <--> API
 
+Builds - BuildsHTTP
+BuildsHTTP <- Ingress
+Builds --> Git : "git clone"
+Builds -- Postgres
+IngressHTTP -- Ingress
+BuildsUI --> IngressHTTP
+
 K8SAPI - Kubernetes
 
 Runboat <-> K8SAPI  : "kubectl / HTTPS"
 
-Builds - BuildsHTTP
-BuildsHTTP <- Ingress
-Builds -- Postgres
-IngressHTTP -- Ingress
-BuildsUI --> IngressHTTP
-
 @enduml