Post-release: bump to 2.2.1-dev

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: Technologicat

CHANGELOG.md

@@ -1,5 +1,12 @@
 # Changelog
 
+**2.2.1** (in progress):
+
+*No user-visible changes yet.*
+
+
+---
+
 **2.2.0** (12 May 2026) — *"Hail Eris"* edition:
 
 **New**:

unpythonic/__init__.py

@@ -7,7 +7,7 @@
 for a trip down the rabbit hole.
 """
 
-__version__ = '2.2.0'
+__version__ = '2.2.1-dev'
 
 from .amb import *  # noqa: F401, F403
 from .arity import *  # noqa: F401, F403