chore(build): update setuptools

Signed-off-by: Boris Yumankulov <boria138@altlinux.org>

pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=61.0"]
+requires = ["setuptools >= 77.0.3"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -7,7 +7,8 @@ name = "portprotonqt"
 version = "0.1.5"
 description = "A project to rewrite PortProton (PortWINE) using PySide"
 readme = "README.md"
-license = { text = "GPL-3.0" }
+license = "GPL-3.0-or-later"
+license-files = ["LICENSE"]
 authors = [
   { name = "Boria138" },
   { name = "BlackSnaker" },
@@ -22,7 +23,7 @@ classifiers = [
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
-  "Operating System :: Linux"
+  "Operating System :: POSIX :: Linux"
 ]
 requires-python = ">=3.10"
 dependencies = [