fix(rpc/client): handle empty auth token (#4197)

Author: eshaan7

api/rpc/client/client.go

@@ -66,7 +66,10 @@ func (c *Client) Close() {
 // NewClient creates a new Client with one connection per namespace with the
 // given token as the authorization token.
 func NewClient(ctx context.Context, addr, token string) (*Client, error) {
-	authHeader := http.Header{perms.AuthKey: []string{fmt.Sprintf("Bearer %s", token)}}
+	var authHeader http.Header
+	if token != "" {
+		authHeader = http.Header{perms.AuthKey: []string{fmt.Sprintf("Bearer %s", token)}}
+	}
 	return newClient(ctx, addr, authHeader)
 }