Add cluster spinup benchmark (#172)

Author: jrbourbeau

tests/benchmarks/test_coiled.py

@@ -0,0 +1,9 @@
+import uuid
+
+from coiled import Cluster
+
+
+def test_default_cluster_spinup_time(request):
+
+    with Cluster(name=f"{request.node.originalname}-{uuid.uuid4().hex[:8]}"):
+        pass