bump version

org.blackfennec.app.extensions.base.yml

 id: org.blackfennec.app.extensions.base
-branch: '0.11'
+branch: '0.12'
 runtime: org.blackfennec.app
 runtime-version: 'stable'
 sdk: org.gnome.Sdk//43

setup.py

@@ -4,7 +4,7 @@ from setuptools import setup, find_packages
 
 setup(
     name="blackfennec_extensions_base",
-    version="0.11.0",
+    version="0.12.0",
     description="Base extension for BlackFennec",
     long_description="Base extension for BlackFennec",
     long_description_content_type='text/markdown',