prepare for 1.2 release (#3528)

Author: hanouticelina

src/huggingface_hub/__init__.py

@@ -46,7 +46,7 @@
 from typing import TYPE_CHECKING
 
 
-__version__ = "1.1.0.dev0"
+__version__ = "1.2.0.dev0"
 
 # Alphabetical order of definitions is ensured in tests
 # WARNING: any comment added in this dictionary definition will be lost when