[Librarian] Version Bump

CHANGELOG.md

@@ -1,6 +1,18 @@
 # Change Log
 All notable changes to this project will be documented in this file.
 
+[2022-03-09] Version 9.26.0
+---------------------------
+**Library - Feature**
+- [PR #1156](https://github.com/sendgrid/sendgrid-csharp/pull/1156): make RetriableServerErrorStatusCodes public. Thanks to [@maxkoshevoi](https://github.com/maxkoshevoi)!
+
+**Library - Chore**
+- [PR #1166](https://github.com/sendgrid/sendgrid-csharp/pull/1166): push Datadog Release Metric upon deploy success. Thanks to [@eshanholtz](https://github.com/eshanholtz)!
+
+**Library - Fix**
+- [PR #1151](https://github.com/sendgrid/sendgrid-csharp/pull/1151): Use the private body and header datamembers for DeserializeResponseBodyAsync and DeserializeResponseHeaders. Thanks to [@Wind010](https://github.com/Wind010)!
+
+
 [2022-02-09] Version 9.25.3
 ---------------------------
 **Library - Chore**