Is there an existing issue or pull request for this?

• I have searched the existing issues and pull requests

Feature description

It would be nice to allow reading the configuration file from .cliff.toml as well. It's a common pattern to make configuration files start with a dot .. This allows grouping/hiding all configuration files in a single place.

Desired solution

Using mise as example, it allows setting its configuration in several places:

mise.toml is the config file for mise. They can be at any of the following file paths (in order of precedence, top overrides configuration of lower paths):

• mise.local.toml - used for local config, this should not be committed to source control
• mise.toml
• mise/config.toml
• .mise/config.toml
• .config/mise.toml - use this in order to group config files into a common directory
• .config/mise/config.toml
• .config/mise/conf.d/*.toml - all files in this directory will be loaded in alphabetical order

For git cliff:

• cliff.toml
• .cliff.toml
• .config/cliff.toml
• ...

Alternatives considered

GIT_CLIFF_CONFIG env variable.

Using an environment variable might be an alternative, although this makes it less portable and depends on individual users configuration

Additional context

No response