Overrides in pyproject.toml not excluding specified modules

When running mypy with a pyproject.toml configuration that uses the [[tool.mypy.overrides]] section to exclude specific modules, the specified modules are still being type-checked, contrary to expectations.

Steps to Reproduce:

Set up a pyproject.toml with mypy configurations using the [[tool.mypy.overrides]] section to exclude a specific module:

[tool.mypy]
python_version = "3.8"

[[tool.mypy.overrides]]
module = ["test_module.sample"]
ignore_errors = true

Have a sample module with evident type errors:

# test_module/sample.py
def faulty_function() -> int:
    return "This should be an integer!"

Run mypy with the provided configuration:

mypy test_module/ --config-file pyproject.toml

Expected Behavior:
The module test_module.sample should be excluded from type-checking and no errors should be reported.

Actual Behavior:
mypy reports type errors from the module test_module.sample, indicating that it is not being excluded as specified in the configuration.

Mypy Version: 1.6.1

Reproduce the issue using the shown pyproject.toml configuration and test_module/sample.py, then trace how mypy processes the [[tool.mypy.overrides]] section. Done means test_module.sample is not reported when ignore_errors is true; verify the behavior with the provided mypy command.