fix: export AEAD_NULL_TAG with disable-encryption feature

neqo needs it

Author: larseggert

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nss-rs"
-version = "0.9.0"
+version = "0.9.1"
 authors = ["Martin Thomson <mt@lowentropy.net>", "Andy Leiserson <aleiserson@mozilla.com>", "John M. Schanck <jschanck@mozilla.com>", "Benjamin Beurdouche <beurdouche@mozilla.com>", "Anna Weine <anna.weine@mozilla.com>"]
 categories = ["network-programming", "web-programming"]
 keywords = ["nss", "crypto", "mozilla", "firefox"]

src/aead.rs

@@ -7,6 +7,8 @@
 use std::{os::raw::c_int, ptr::null_mut};
 
 pub use recprot::RecordProtection;
+#[cfg(feature = "disable-encryption")]
+pub use recprot::AEAD_NULL_TAG;
 
 use crate::{
     SECItemBorrowed, SymKey,