fixup! fixup! fixup! fixup! fixup! fixup!: Add warning and add testing on newer python vesion

Author: xitij2000

README.md

@@ -1,8 +1,10 @@
 > [!WARNING]
-> Problem Builder is no longer being developed by OpenCraft. 
-> It will be supported with compatibility and security fixes 
+> Problem Builder is no longer being developed by OpenCraft.
+> It will be supported with compatibility and security fixes
 > till the Teak release after which this repository will be
 > stop receiving further updates and be archived.
+> A simplified XBlock with some of the key features of this
+> block is being investigated at OpenCraft.
 
 
 ## Problem Builder and Step Builder

problem_builder/__init__.py

@@ -1,9 +1 @@
-import warnings
-
-warnings.warn(
-    "problem-builder has been deprecated and will not be supported after the"
-    "Teak release of Open edX.",
-    DeprecationWarning,
-)
-
-__version__ = "5.1.4"
+__version__ = "5.1.5"