Reduce the number of containers in integration tests

integration_test.go

@@ -47,11 +47,11 @@ func TestIntegrationTestSuite(t *testing.T) {
 
 	s.namespaces = map[string]TestNamespace{
 		"thisspace": {
-			count:      15,
+			count:      10,
 			tailscales: make(map[string]dockertest.Resource),
 		},
 		"otherspace": {
-			count:      5,
+			count:      2,
 			tailscales: make(map[string]dockertest.Resource),
 		},
 	}