Update staging-taskdef.json

Scaling down the app(staging) to use only .25 vCPU and 512MB of RAM

Author: sreevalsanmr

.github/assets/staging-taskdef.json

@@ -51,8 +51,8 @@
 	}],
 	"volumes": [],
 	"networkMode": "awsvpc",
-	"memory": "1024",
-	"cpu": "512",
+	"memory": "512",
+	"cpu": "256",
 	"executionRoleArn": "arn:aws:iam::070528468658:role/docs-staging-TaskRole",
 	"family": "docs-staging-taskdefinition",
 	"taskRoleArn": "arn:aws:iam::070528468658:role/docs-staging-TaskRole",