chore: 📝 update license format in pyproject.toml (Pycord-Development#2824)

* 📝 update license format in pyproject.toml

* chore: reference license file

Signed-off-by: Lala Sabathil <[email protected]>

* fix: classifer is invalid now

Signed-off-by: Lala Sabathil <[email protected]>

---------

Signed-off-by: Lala Sabathil <[email protected]>
Co-authored-by: Lala Sabathil <[email protected]>

(cherry picked from commit 1c65fc8)

Author: Paillat-dev

pyproject.toml

@@ -8,12 +8,13 @@ authors = [
     {name = "Pycord Development"}
 ]
 description = "A Python wrapper for the Discord API"
-readme = "README.rst"
+readme = {content-type = "text/x-rst", file = "README.rst"}
 requires-python = ">=3.10"
-license = {text = "MIT"}
+license = "MIT"
+license-files = ["LICENSE"]
 classifiers = [
     "Development Status :: 5 - Production/Stable",
-    "License :: OSI Approved :: MIT License",
+    "License-Expression :: MIT",
     "Intended Audience :: Developers",
     "Natural Language :: English",
     "Operating System :: OS Independent",