once again trying to rollback to old cascadia cert (#43)

* once again trying to rollback to old cascadia cert. 
* [Bot] Update version to 1.2.1

---------

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: goulter

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "uw-saml"
-version = "1.2.0"
+version = "1.2.1"
 description = "A UW-specific adapter to the python3-saml package."
 authors = []
 license = "Apache 2.0"