python/setup: prepare for new version

Change-Id: I13884a2e5ff659d624b0617eda73a817d3489658
Reviewed-on: https://code-review.googlesource.com/c/re2/+/63690
Reviewed-by: Alan Donovan <adonovan@google.com>

python/setup.py

diff --git a/python/setup.py b/python/setup.py
index 1398529..a42d40a 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -129,7 +129,7 @@
 
   setuptools.setup(
       name='google-re2',
-      version='1.1.20250626',
+      version='1.1.20250722',
       description='RE2 Python bindings',
       long_description=long_description,
       long_description_content_type='text/plain',