test: more CLI tests

[artus9033]

This PR introduces the following:

• more integration tests to the license-kit CLI for the report command,
• unit tests for utilities in the shared package
• a CI workflow to run the unit tests
• fix for an edge case in normalizeRepositoryUrl (git+ssh://git@github.com... URLs would not be converted properly so far - they would have a : separator instead of /)
• clarifies a few details in the documentation of license-kit, corrects invalid default value & one typo in that documentation
• extracts helpers from common.ts to separate yamlUtils.ts
• adds badges for test-integration-node.yml & test-unit-shared.yml workflows to the root README.md

[changeset-bot]

⚠️ No Changeset found

Latest commit: cd87699

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[mateusz1913]

Great job 🥳 left 2 comments to address before merging

[mateusz1913]

Great job! Two small things to change and let's ship it!

[artus9033]

Thanks @mateusz1913!

[mateusz1913]

🚢