Update setup.py test configuration

Author: bogdandm

setup.py

@@ -1,3 +1,4 @@
+import multiprocessing
 import sys
 
 from setuptools import find_packages, setup
@@ -9,6 +10,8 @@
     required = f.read().splitlines()
 URL = "https://github.com/bogdandm/json2python-models"
 
+CPU_N = multiprocessing.cpu_count()
+
 
 class PyTest(TestCommand):
     user_options = [("pytest-args=", "a", "Arguments to pass to pytest")]
@@ -20,8 +23,10 @@ def initialize_options(self):
     def run_tests(self):
         import shlex
         import pytest
-
-        errno = pytest.main(shlex.split(self.pytest_args + ' -m "not slow_http"'))
+        args = self.pytest_args
+        if CPU_N > 1 and "-n " not in args:
+            args += f" -n {CPU_N}"
+        errno = pytest.main(shlex.split(args))
         sys.exit(errno)
 
 
@@ -31,6 +36,7 @@ def run_tests(self):
     python_requires=">=3.7",
     url=URL,
     author="bogdandm (Bogdan Kalashnikov)",
+    author_email="bogdan.dm1995@yandex.ru",
     description="Python models (attrs, dataclasses or custom) generator from JSON data with typing module support",
     license="MIT",
     packages=find_packages(exclude=['test', 'testing_tools']),
@@ -39,9 +45,6 @@ def run_tests(self):
     },
     install_requires=required,
     cmdclass={"test": PyTest},
-    tests_require=["pytest", "requests", "attrs"],
-    project_urls={
-        'Source': URL
-    },
+    tests_require=["pytest", "pytest-xdist", "requests", "attrs"],
     data_files=[('', ['pytest.ini', '.coveragerc', 'LICENSE'])]
 )