Update lint config to match Lightning's (#33)

.pre-commit-config.yaml

@@ -1,5 +1,5 @@
 default_language_version:
-  python: python3.8
+  python: python3
 
 ci:
   autofix_prs: true

setup.cfg

@@ -4,10 +4,15 @@ norecursedirs =
     dist
     build
 addopts =
-    --strict
+    --strict-markers
     --doctest-modules
     --durations=25
     --color=yes
+    --disable-pytest-warnings
+filterwarnings =
+    error::FutureWarning
+    error::DeprecationWarning
+xfail_strict = true
 
 [coverage:report]
 exclude_lines =
@@ -22,9 +27,10 @@ doctests = True
 verbose = 2
 # https://pep8.readthedocs.io/en/latest/intro.html#error-codes
 format = pylint
-# see: https://www.flake8rules.com/
 ignore =
-    E731  # Do not assign a lambda expression, use a def
+    E731  # Ignore "Do not assign a lambda expression, use a def"
+    W503  # Ignore "Line break occurred before a binary operator"
+    E203  # Ignore "whitespace before ':'"
 
 # setup.cfg or tox.ini
 [check-manifest]