Fix websockets class loading issue

[stuartwdouglas]

Fixes #16427

[quarkus-bot]

This workflow status is outdated as a new workflow run has been triggered.

Failing Jobs - Building 07c4295

Status	Name	Step	Test failures	Logs	Raw logs
✖	JVM Tests - JDK 11	Build	Test failures	Logs	Raw logs
✖	JVM Tests - JDK 11 Windows	Build	Test failures	Logs	Raw logs
✖	JVM Tests - JDK 15	Build	Test failures	Logs	Raw logs
✖	JVM Tests - JDK 8	Build	Test failures	Logs	Raw logs
✖	Native Tests - Main	Build	Test failures	Logs	Raw logs

Test Failures

⚙️ JVM Tests - JDK 11 #

📦 integration-tests/main

✖ io.quarkus.it.main.WebsocketTestCase.websocketClientEncodingAndDecodingTest line 103 - Source on GitHub

---

⚙️ JVM Tests - JDK 11 Windows #

📦 integration-tests/main

✖ io.quarkus.it.main.WebsocketTestCase.websocketClientEncodingAndDecodingTest line 103 - Source on GitHub

---

⚙️ JVM Tests - JDK 15 #

📦 integration-tests/main

✖ io.quarkus.it.main.WebsocketTestCase.websocketClientEncodingAndDecodingTest line 103 - Source on GitHub

---

⚙️ JVM Tests - JDK 8 #

📦 integration-tests/main

✖ io.quarkus.it.main.WebsocketTestCase.websocketClientEncodingAndDecodingTest line 103 - Source on GitHub

---

⚙️ Native Tests - Main #

📦 integration-tests/main

✖ io.quarkus.it.main.WebsocketITCase.websocketClientEncodingAndDecodingTest - Source on GitHub