use proper app name

Author: baileympearson

test/integration/crud/explain.test.ts

@@ -319,7 +319,7 @@ describe('CRUD API explain option', function () {
     beforeEach(async function () {
       client = this.configuration.newClient(
         {},
-        { monitorCommands: true, minPoolSize: 5, appName: 'explain-test' }
+        { monitorCommands: true, minPoolSize: 5, appName: 'explain-tests' }
       );
       client.on('commandStarted', filterForCommands('explain', commands));