fix: add SPDX license identifier (#37)

Author: cdce8p

pyproject.toml

@@ -1,6 +1,7 @@
 [tool.poetry]
 name = "kasa-crypt"
 version = "0.6.1"
+license = "Apache-2.0"
 description = "Fast kasa crypt"
 authors = ["J. Nick Koston <nick@koston.org>"]
 readme = "README.md"
@@ -11,7 +12,6 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: OS Independent",
     "Topic :: Software Development :: Libraries",
-    "License :: OSI Approved :: Apache Software License",
 ]
 packages = [
     { include = "kasa_crypt", from = "src" },
@@ -81,5 +81,5 @@ module = "tests.*"
 allow_untyped_defs = true
 
 [build-system]
-requires = ['setuptools>=65.4.1', 'wheel', 'Cython>=3', "poetry-core>=1.0.0"]
+requires = ['setuptools>=77.0', 'Cython>=3', "poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"