chore: fix cursor clean up

Author: nbbeeken

test/integration/node-specific/abort_signal.test.ts

@@ -95,7 +95,10 @@ describe('AbortSignal support', () => {
     logs.length = 0;
     const utilClient = this.configuration.newClient();
     try {
-      await utilClient.db('abortSignal').command({ killCursors: 'support', cursors });
+      if (cursors.length) {
+        await utilClient.db('abortSignal').command({ killCursors: 'support', cursors });
+        cursors.length = 0;
+      }
       await utilClient.db('abortSignal').collection('support').deleteMany({});
     } finally {
       await utilClient.close();

test/integration/node-specific/auto_connect.test.ts

@@ -244,7 +244,10 @@ describe('When executing an operation for the first time', () => {
     });
 
     afterEach(async function () {
-      await client.db('auto-connect-change').command({ killCursors: 'auto-connect', cursors });
+      if (cursors.length) {
+        await client.db('auto-connect-change').command({ killCursors: 'auto-connect', cursors });
+        cursors.length = 0;
+      }
       await changeCausingClient?.close();
       await cs?.close();
     });