Fixed wording in v2.12.0 release announcement.

Author: JamesKovacs

Release Notes/Release Notes v2.12.0.md

@@ -19,7 +19,7 @@ An online version of these release notes is available at:
 
 https://github.com/mongodb/mongo-csharp-driver/blob/master/Release%20Notes/Release%20Notes%20v2.12.0.md
 
-The full list of JIRA issues that are currently scheduled to be resolved in this release is available at:
+The full list of JIRA issues that are resolved in this release is available at:
 
 https://jira.mongodb.org/issues/?jql=project%20%3D%20CSHARP%20AND%20fixVersion%20%3D%202.12.0%20ORDER%20BY%20key%20ASC