http: add missing initialization

Add missing initialization reported by coverity scan.

Signed-off-by: Michael Dawson <mdawson@devrus.com>

PR-URL: #40555
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>

src/node_http_common-inl.h

@@ -131,7 +131,8 @@ NgHeader<T>::NgHeader(
 
 template <typename T>
 NgHeader<T>::NgHeader(NgHeader<T>&& other) noexcept
-    : name_(std::move(other.name_)),
+    : env_(other.env_),
+      name_(std::move(other.name_)),
       value_(std::move(other.value_)),
       token_(other.token_),
       flags_(other.flags_) {