Don't search up for the config

[ecraig12345]

Currently, getRepoOptions has logic to search up to the git root or even the filesystem root for a beachball config. This is really not necessary and could lead to unexpected behavior.

In v3, we should only look for a config at cliOptions.path (which is the project root or cwd). Potentially getCliOptions should also have a fallback to look for the package root if no project/git root is found.

[ecraig12345]

The fallback case (no git root) has been modified to only search cwd, and that case should never be hit since the CLI verifies running in a git repo. Removing searching up to the git root isn't essential and might break people.