Add GithubUtils and generateVersionComparisonURL

[SombreroElGringo]

@roryabraham will you please review this?

[Explanation of the change or anything fishy that is going on]

I added the class GithubUtils and its method generateVersionComparisonURL.
I installed the following missing packages 'semver' and '@actions/core'.

PS: Also for the tests I needed to use async/await else I got some timeout. Also I tried different workaround for example expect(Promise).resolves.toBe(url) but it was not working correctly. At least with async/await we are sure the tests are working correctly.

Fixed Issues

$ Expensify/App#1577

Tests

For repository with the following tags 2.2.2, 2.2.1, 2.1.0-1, 2.1.0, 2.0.0-1, 2.0.0, 1.2.2-2, 1.2.2-1, 1.2.2, 1.2.1, 1.2.0, 1.1.0, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0 and 0.0.1

MAJOR comparison
-- if we pass the tag 2.2.2 as param it should return https:///1.2.2...2.2.2
-- if we pass the tag 1.2.0 as param it should return https:///0.0.1...1.2.0

MINOR comparison
-- if we pass the tag 2.2.2 as param it should return https:///2.1.0...2.2.2
-- if we pass the tag 1.1.0 as param it should return https:///1.0.4...1.1.0

PATCH comparison
-- if we pass the tag 2.2.2 as param it should return https:///2.2.1...2.2.2
-- if we pass the tag 1.0.0 as param it should return https:///0.0.1...1.0.0

BUILD comparison
-- if we pass the tag 2.1.0-1 as param it should return https:///2.1.0...2.1.0-1
-- if we pass the tag 1.2.2-2 as param it should return https:///1.2.2...1.2.2-2

QA

If the generateVersionComparisonURL return the good url following the parameters passed.

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[SombreroElGringo]

I have read the CLA Document and I hereby sign the CLA

[roryabraham]

recheck

[roryabraham]

@SombreroElGringo Looks like you've got some merge conflicts to resolve.

[roryabraham]

Just a couple minor suggestions + the async/await -> promise changes. All minor stuff!

[roryabraham]

LGTM 👍