aj/ensure tsc installed

[astuyve]

• NOMERGE: test publish script with dryrun
• WIP: comment out exit so script runs in dry run
• fix: Use yarn instead of npm build
• feat: Install typescript instead of tsc
• feat: node before script as well
• feat: Ensure typescript is installed before publish

What does this PR do?

Ensures the node-before-script is ran and typescript is installed before publishing to npm

Motivation

Testing Guidelines

Additional Notes

Types of Changes

• [ ] Bug fix
• [ ] New feature
• [ ] Breaking change
• [ ] Misc (docs, refactoring, dependency upgrade, etc.)

Check all that apply

• [ ] This PR's description is comprehensive
• [ ] This PR contains breaking changes that are documented in the description
• [ ] This PR introduces new APIs or parameters that are documented and unlikely to change in the foreseeable future
• [ ] This PR impacts documentation, and it has been updated (or a ticket has been logged)
• [ ] This PR's changes are covered by the automated tests
• [ ] This PR collects user input/sensitive content into Datadog
• [ ] This PR passes the integration tests (ask a Datadog member to run the tests)