chore: add check-manifest pre-commit

Author: kiendang

.pre-commit-config.yaml

@@ -15,6 +15,10 @@ repos:
         args:
         - --autofix
     -   id: trailing-whitespace
+-   repo: https://github.com/mgedmin/check-manifest
+    rev: "0.49"
+    hooks:
+    -   id: check-manifest
 -   repo: https://github.com/psf/black
     rev: 23.7.0
     hooks:

MANIFEST.in

@@ -6,6 +6,8 @@ include CONTRIBUTING.md
 
 include codecov.yml
 include tox.ini
+include .pre-commit-config.yaml
+include .ruff.toml
 
 recursive-include docs *.md *.svg