DOCSP-39587 mongosh 2.2.6 release notes (#342)

Author: jocelyn-mendez1

source/changelog.txt

@@ -55,6 +55,16 @@ v2.2.9
 
 ``mongosh`` now uses version 6.7.0 of the :driver:`Node.js driver </node/>`.
 
+v2.2.6
+------
+
+*Released May 15, 2024*
+
+``mongosh`` now uses version 6.6.2 of the :driver:`Node.js driver </node/>`.
+
+`Full release notes available on JIRA 
+<https://jira.mongodb.org/secure/ReleaseNote.jspa?projectId=17381&version=39184>`__.
+
 v2.2.5
 ------