feat(lerna): add release-by-pr action

[kylemellander]

Lerna is a way to manage our monorepos. This action allows for the creation of a release PR using lerna as its core. This created a scenario where things were different enough to where the logic did not feel like it warranted sharing much (especially since there are only 2 versions). The general flow is:

• Detect changes - if there are none, bail early
• Check Out the release branch and set it to main
• Run lerna to bump the version (this will automatically detect what type of version bump it is based on git commit history)
• If nothing is updated (only internal changes), bail early
• Push the changes to the release branch
• Create or update release PR with the changelog updates
• assign reviewers who wrote the commits.

The key thing about this workflow is that the version bump is automated based on commit history. This is a benefit, but also a limiter of using automations. It allows us to not have to manually update the changelog, however.

Additional Changes

In addition, now that there are 3 different actions that build TypeScript, I moved the configuration for formatting and tsconfig to a global place.