bugs fixed?

Author: aditi-khare-mongoDB

src/error.ts

@@ -1223,7 +1223,7 @@ export function needsRetryableWriteLabel(
   // pre-4.4 server, then the driver adds an error label for every valid case
   // execute operation will only inspect the label, code/message logic is handled here
   if (error instanceof MongoNetworkError) {
-    return !isSharded;
+    return true;
   }
 
   if (error instanceof MongoError) {

test/integration/retryable-writes/retryable_writes.spec.test.ts

@@ -203,6 +203,6 @@ async function turnOffFailPoint(client, name) {
   });
 }
 
-describe('Retryable Writes (unified)', function () {
+describe.only('Retryable Writes (unified)', function () {
   runUnifiedSuite(loadSpecTests(path.join('retryable-writes', 'unified')));
 });