Apprise Build System Modernization (PEP 621 / RPM CI) (#1368)

dev-requirements.txt

@@ -1,6 +1,14 @@
+#
+# Note: This file is being kept for backwards compatibility with
+#       legacy systems that point here.  All future changes should
+#       occur in pyproject.toml.  Contents of this file can be found
+#       in [project.optional-dependencies].dev
+
 coverage
-flake8
+mock
 pytest
 pytest-cov
 pytest-mock
+ruff
 babel
+validate-pyproject