v2.0.0

Get the PR info by ID or associated commit @goruha (#12)

## What * Extend GHA to support retrieving PR by ID * Replaced usage of npm with yarn * Added tests for getting PR by PR ID * Copy `package.json` and `jest` configs from cloudposse typescript actions

Why

• Working with issue comments, we have PR ID instead of commit SHA in the context.
• Standardazise toolchain
• Improve test coverage
• Standardazise config and workflows

References

• https://github.com/cloudposse/.github/pull/117/files#diff-90dcedcd84c3e38439050ef7ae1df7289d0c0b842f39f9f84fbd33c4de8f122fR22