Update makefile with runtask for stage

This commit updates the makefile with a new command - "run-stage"
Run-stage is outputted by the terraform used to create the infrastructure and copy/pasted here for connivence.
Calling run-stage will execute the latest version of the container in the stage environment using the MITVPC.

Makefile

@@ -24,6 +24,9 @@ publish: dist ## Build, tag and push
 	docker push $(ECR_REGISTRY)/dspacesubmissionservice-stage:latest
 	docker push $(ECR_REGISTRY)/dspacesubmissionservice-stage:`git describe --always`
 
+run-stage: 
+	aws ecs run-task --cluster dspacesubmissionservice-stage --task-definition dspacesubmissionservice-stage --network-configuration "awsvpcConfiguration={subnets=[subnet-0744a5c9beeb49a20],securityGroups=[sg-06b90b77a06e5870a],assignPublicIp=DISABLED}" --launch-type FARGATE --region us-east-1
+
 lint: bandit black flake8 isort ## Runs all linters
 
 bandit: ## Security oriented static analyser for python code