[java-atk-wrapper] Fix thread reference leak

[Samuel Thibault <sthibaul src gnome org>]

commit b5022bf047f8b62e9ad8dda6c80c475a98a9db0f
Author: Samuel Thibault <samuel thibault ens-lyon org>
Date:   Mon Mar 14 00:03:14 2022 +0100

    Fix thread reference leak

 jni/src/AtkWrapper.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/jni/src/AtkWrapper.c b/jni/src/AtkWrapper.c
index 4a5f049..9a06e1d 100644
--- a/jni/src/AtkWrapper.c
+++ b/jni/src/AtkWrapper.c
@@ -179,6 +179,11 @@ JNICALL Java_org_GNOME_Accessibility_AtkWrapper_loadAtkBridge(void)
     JAW_DEBUG_I("Thread create failed: %s !", err->message);
     g_error_free (err);
   }
+  else
+  {
+    /* We won't join it */
+    g_thread_unref(thread);
+  }
 }
 
 JNIEXPORT void