Add release notes for 0.6.1

RELEASE_NOTES.txt

diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt
index 82c9f05..86448e9 100644
--- a/RELEASE_NOTES.txt
+++ b/RELEASE_NOTES.txt
@@ -1,6 +1,10 @@
 Apache Ignite python thin client
 ================================
 
+0.6.1
+--------------------------------
+* Fixed query listener fires events only if debug logging level enabled.
+
 0.6.0
 --------------------------------
 * Added support of python 3.11