[CI] GH Actions for Repo Management

[Lissy93]

Category: CI

Overview
This PR does not contain any project code changes. It instead updates existing workflows, and adds new ones to help manage repository administration, such as issues, PRs, releases, code quality checking, dependency monitoring, etc

Issue Number N/A

New Vars N/A

Screenshot N/A

Code Quality Checklist (Please complete)

• All changes are backwards compatible
• All lint checks and tests are passing
• There are no (new) build warnings or errors
• (If a new config option is added) Attribute is outlined in the schema and documented
• (If a new dependency is added) Package is essential, and has been checked out for security or performance
• Bumps version, if new feature added

[netlify]

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[viezly]

This pull request is split into 4 parts for easier review.
👀 Review pull request on Viezly

Changed files are located in these folders:

• .github
• .github/workflows
• /
• docs