Correctly reference cwd instead of __dirname

[jwyld]

This is for issue #7670. I consider this a typo, but maybe you don't.

In order to see the problem, you need to have the packager search for the configuration in a place that doesn't have one and the default configuration can't be provided. It's likely that no one is doing this and also why this probably wasn't seen.

[ghost]

By analyzing the blame information on this pull request, we identified @janicduplessis and @martinbigio to be potential reviewers.

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[janicduplessis]

What path will this display before and after your change?

[jwyld]

For 99% (or higher) of all uses, it will be exactly the same value as the previous value since __dirname is almost always the same as the passed in cwd value.

I'm currently playing with a setup which allows passing the rn-cli.config.js file location to the bundler. As a result, cwd is not __dirname, but no one else has this code either.

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[janicduplessis]

Ok, I had a look at the code and it makes sense to show cwd in the error message since that is the directory we are searching in. Thanks for the fix!

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