Fix: Run Undercover silently failing when running Danger in CI

[htoo-eain-lwin]

Issue

It's only happening when the repo name includes -. It'll work if the repo name is single word or use _.
As you see, even tough it's showing the error, our Run Danger is still passing.

I think this happens when undercover-report tries to find /lcov/google-crawler.lcov instead of /lcov/google_crawler.lcov

/home/runner/work/google-crawler/google-crawler/vendor/bundle/ruby/3.2.0/gems/undercover-0.4.6/lib/
undercover.rb:32:in `initialize': No such file or directory @ rb_sysopen - /home/runner/work/
google-crawler/google-crawler/coverage/lcov/google-crawler.lcov (Errno::ENOENT)
	from /home/runner/work/google-crawler/google-crawler/vendor/bundle/ruby/3.2.0/gems
	/undercover-0.4.6/lib/undercover.rb:32:in `open'

But it's creating correctly lcov/google-crawler.lcov when try to run in local 😵

Expected

Run bundle exec undercover-report -l /home/runner/work/google-crawler/google-crawler/coverage/lcov/google_crawler.lcov
##[debug]/usr/bin/bash -e /home/runner/work/_temp/ba524503-14d3-42fe-bd4b-8148a20b0d53.sh
✅ No reportable changes
Undercover finished in 0.015s

Steps to reproduce

1. Create New project using our template, make sure to include - in the repo name and create pull request to main or develop with some changes.
2. You can see the error under Run Danger > Run Undercover

[htoo-eain-lwin]

For now, I can by pass via updating to the following in the test.yml

  - name: Run Undercover
    run: bundle exec undercover-report -l /home/runner/work/google-crawler/google-crawler/coverage/lcov/google_crawler.lcov