fix: ignore OpenPGP users without userId

CHANGELOG.md

@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Ignore OpenPGP users without userId
 
 ## [1.0.0] - 2023-07-13
 ### Changed

src/openpgp.js

@@ -292,6 +292,8 @@ export async function parsePublicKey (publicKey) {
   const personas = []
 
   users.forEach((user, i) => {
+    if (!user.userID) return
+
     const pe = new Persona(user.userID.name, [])
     pe.setIdentifier(user.userID.userID)
     pe.setDescription(user.userID.comment)