Switch classifiers from a tuple to a list (#784)

* Switch classifiers from a tuple to a list

Recommended by @abravalheri in pypa/setuptools#3707 (comment)

* Fix github URL for pycqa/flake8 precommit hook

Co-authored-by: jyejare <jyejare@redhat.com>
(cherry picked from commit 8012321)

.pre-commit-config.yaml

@@ -14,7 +14,7 @@ repos:
   rev: 22.3.0
   hooks:
   - id: black
-- repo: https://gitlab.com/pycqa/flake8
+- repo: https://github.com/pycqa/flake8
   rev: 3.9.2
   hooks:
   - id: flake8

setup.py

@@ -32,7 +32,7 @@
     include_package_data=True,
     license='GNU GPL v3.0',
     # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
-    classifiers=(
+    classifiers=[
         'Development Status :: 1 - Planning',
         'Intended Audience :: Developers',
         'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
@@ -42,5 +42,5 @@
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
-    ),
+    ],
 )