Add create-package label build script

[TwitchBronBron]

Adds support for adding create-package labels to pull requests, at which point github actions will auto-build a temporary .tgz npm package.

[github-actions]

Hey there! I just built a new temporary npm package based on cec508a. You can download it here or install it by running the following command:

npm install https://github.com/rokucommunity/brighterscript/releases/download/v0.0.0-packages/brighterscript-0.65.10-alpha.20231115204356.tgz

[github-actions]

Hey there! I just built a new temporary npm package based on d4e3eac. You can download it here or install it by running the following command:

npm install https://github.com/rokucommunity/brighterscript/releases/download/v0.0.0-packages/brighterscript-0.65.10-create-package-label.20231116180143.tgz

[github-actions]

Hey there! I just built a new temporary npm package based on 4bb95e1. You can download it here or install it by running the following command:

npm install https://github.com/rokucommunity/brighterscript/releases/download/v0.0.0-packages/brighterscript-0.65.10-create-package-label.20231116181013.tgz

[rokucommunity-bot]

Hey there! I just built a new temporary npm package based on 7645b53. You can download it here or install it by running the following command:

npm install https://github.com/rokucommunity/brighterscript/releases/download/v0.0.0-packages/brighterscript-0.65.10-create-package-label.20231116181522.tgz