fix: add missing tokenManage.close() call

apigee_sync_test.go

diff --git a/apigee_sync_test.go b/apigee_sync_test.go
index c3a20bf..d0a8038 100644
--- a/apigee_sync_test.go
+++ b/apigee_sync_test.go
@@ -145,7 +145,7 @@
 				Expect(s.SnapshotInfo).Should(Equal(apidInfo.LastSnapshot))
 				Expect(s.Tables).To(BeNil())
 
-				//sleep so that logging output from CS poller stops before test closes
+				tokenManager.close()
 				//sleep to ensure tokenManager has closed.  t.close() is non blocking
 				time.Sleep(500 * time.Millisecond)
 				close(done)