Add more CI checks (#1150)

* Enable mypy.

* Add flake8.

* Add pylint with a long list of ignores to be removed.

antsibull-nox.toml

@@ -19,13 +19,22 @@ stable_branches = [ "stable-*" ]
 run_isort = true
 isort_config = ".isort.cfg"
 run_black = true
-run_flake8 = false
-run_pylint = false
+run_flake8 = true
+flake8_config = ".flake8"
+run_pylint = true
+pylint_rcfile = ".pylintrc"
 run_yamllint = true
 yamllint_config = ".yamllint"
 yamllint_config_plugins = ".yamllint-docs"
 yamllint_config_plugins_examples = ".yamllint-examples"
-run_mypy = false
+run_mypy = true
+mypy_ansible_core_package = "ansible-core>=2.19.0"
+mypy_config = ".mypy.ini"
+# mypy_extra_deps = [
+#     "cryptography",
+#     "types-mock",
+#     "types-PyYAML",
+# ]
 
 [sessions.docs_check]
 validate_collection_refs="all"