Changelog for 0.11

Changelog.md

 # Changelog
 
 All notable changes to this project will be documented in this file.
+
+## [0.11] - 2024-05-27
+- POL1-826: reintroduce snmp check for ipv6 counters on juniper ae subinterfaces
+- get-interface-stats: error code 1 for warning, 2 for error
+
 ## [0.10] - 2024-05-07
 - Poll netconf only once for both brian and error counters