Exception must be thrown outside the retry loop (#401)

* Exception must be thrown outside the retry loop

* package-lock.json

* Revert "package-lock.json"

This reverts commit 2b266d6.

---------

Co-authored-by: CK Kashyap <ckk@microsoft.com>

src/directLineStreaming.ts

@@ -337,11 +337,12 @@ export class DirectLineStreaming implements IBotConnection {
         }
       } catch (err) {
         console.error(`Failed to connect ${err}`);
-        throw(err);
       }
 
       await new Promise(r => setTimeout(r, this.getRetryDelay()));
     }
+
+    throw (new Error(`Failed to connect after ${MAX_RETRY_COUNT} attempts`));
   }
 
   // Returns the delay duration in milliseconds