Bump to version 2026.04

Author: enjoy-digital

setup.py

@@ -10,7 +10,7 @@
 
 setup(
     name                          = "litespi",
-    version = "2025.12",
+    version = "2026.04",
     description                   = "Small footprint and configurable SPI core",
     long_description              = long_description,
     long_description_content_type = "text/markdown",