fix: include pyproject.toml

Author: shenxianpeng

pyproject.toml

@@ -61,6 +61,9 @@ zip-safe = false
 packages = ["cpp_linter_hooks"]
 include-package-data = true
 
+[tool.setuptools.package-data]
+cpp_linter_hooks = ["../pyproject.toml"]
+
 [tool.setuptools_scm]
 # It would be nice to include the commit hash in the version, but that
 # can't be done in a PEP 440-compatible way.