Bump version to 1.38.0rc2

Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>

Copilot-Session: 593fce2a-8559-422e-92e2-46fb29c251a4

Author: 4gust

msal/sku.py

@@ -2,5 +2,5 @@
 """
 
 # The __init__.py will import this. Not the other way around.
-__version__ = "1.37.0"
+__version__ = "1.38.0rc2"
 SKU = "MSAL.Python"