fix(cli): bump minimum version so old project properly fail (#3307)

Co-authored-by: Ralf Grubenmann <ralf.grubenmann@gmail.com>
Co-authored-by: Mohammad Alisafaee <mohammad.alisafaee@epfl.ch>

Author: 3 people

renku/version.py

@@ -26,7 +26,7 @@
 
 __version__ = version("renku")
 __template_version__ = "0.4.1"
-__minimum_project_version__ = "1.7.0"
+__minimum_project_version__ = "2.1.0"
 
 
 def is_release():