📦 pkg: declare Python 3.15 support

Author: gaborbernat

pyproject.toml

@@ -30,6 +30,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
   "Programming Language :: Python :: Implementation :: CPython",
   "Topic :: Software Development :: Libraries :: Python Modules",
 ]
@@ -97,7 +98,7 @@ write-changes = true
 count = true
 
 [tool.pyproject-fmt]
-max_supported_python = "3.14"
+max_supported_python = "3.15"
 
 [tool.ty]
 environment.python-version = "3.14"