fix(tests): duplicate messages in featureDev tests #4344

Problem:
- the beforeEach registers a framework which accepts requests. If we don't dispose before building a new one we get duplicate chat messages because theres two message listeners registered

Solution:
- dipose of the first framework instance before creating the second framwork instance

Author: jpinkney-aws

src/testE2E/amazonq/featureDev.test.ts

@@ -62,6 +62,8 @@ describe('Amazon Q Feature Dev', function () {
         })
 
         it('Does NOT show /dev when feature dev is NOT enabled', () => {
+            // The beforeEach registers a framework which accepts requests. If we don't dispose before building a new one we have duplicate messages
+            framework.dispose()
             framework = new qTestingFramework('featuredev', false, true)
             const q = framework.createTab()
             const command = q.findCommand('/dev')