lychee.toml file ignored when it is invalid #1704
Description
When the config file lychee.toml cannot be read the file is not treated as config file, instead it is simply ignored.
This really confused me because I made a syntax error in the config file but I didn't specify it explicitly with --config lychee.toml.
Expected behaviour
lychee . should exit with an error if the lychee.toml exists in the current directory but it is invalid. (as happens with lychee --config lychee.toml .) lychee shouldn't silently ignore the file when unable to parse it.