fix: Do not report context canceled errors to Sentry (#547)

cmd/vroom/profile.go

@@ -86,17 +86,18 @@ func (env *environment) postProfile(w http.ResponseWriter, r *http.Request) {
 		err = storageutil.CompressedWrite(ctx, env.storage, p.StoragePath(), p)
 		s.Finish()
 		if err != nil {
-			if errors.Is(err, context.DeadlineExceeded) {
-				// This is a transient error, we'll retry
+			if errors.Is(err, context.DeadlineExceeded) || errors.Is(err, context.Canceled) {
+				// These are transient errors, we'll retry.
 				w.WriteHeader(http.StatusTooManyRequests)
 			} else {
 				if code := gcerrors.Code(err); code == gcerrors.FailedPrecondition {
+					// This indicates a duplicate, we won't retry.
 					w.WriteHeader(http.StatusPreconditionFailed)
 				} else {
 					if hub != nil {
 						hub.CaptureException(err)
 					}
-					// These errors won't be retried
+					// These errors won't be retried.
 					w.WriteHeader(http.StatusInternalServerError)
 				}
 			}