Move the metadata into PEP 621-compliant pyproject.toml.

Signed-off-by: KOLANICH <[email protected]>

Author: KOLANICH

runtime/Python3/pyproject.toml

@@ -1,3 +1,27 @@
 [build-system]
-requires = ["setuptools>=42.2"]
+requires = ["setuptools>=61.2"]
 build-backend = "setuptools.build_meta"
+
+[project]
+name = "antlr4-python3-runtime"
+version = "4.12.0"
+authors = [{name = "Eric Vergnaud", email = "[email protected]"}, {name = "Terence Parr"}, {name = "Sam Harwell"}]
+license = {text = "BSD"}
+description = "ANTLR 4.12.0 runtime for Python 3"
+urls = {Homepage = "http://www.antlr.org"}
+dependencies = ["typing ; python_version<'3.5'"]
+
+[project.scripts]
+pygrun = "antlr4._pygrun:main"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+packages = [
+    "antlr4",
+    "antlr4.atn",
+    "antlr4.dfa",
+    "antlr4.tree",
+    "antlr4.error",
+    "antlr4.xpath",
+]
+include-package-data = false