[Listing] RESOPS27 - Set up ci for the listings service

[TobySMurray]

Description

Create the base CI jobs for the Listing service: linting, formatting, testing, and security

This PR is stacked on top of #101, so first review that PR (as this diff contains that PR diff also).

Closes #27

How to Test

View the CI output below or run the actions locally with act

Checklist

• [x] The code includes tests if relevant
• [x] I have actually self-reviewed my changes and done QA

[github-advanced-security[bot]]

This pull request sets up GitHub code scanning for this repository. Once the scans have completed and the checks have passed, the analysis results for this pull request branch will appear on this overview. Once you merge this pull request, the 'Security' tab will show more code scanning analysis results (for example, for the default branch). Depending on your configuration and choice of analysis tool, future pull requests will be annotated with code scanning analysis results. For more information about GitHub code scanning, check out the documentation.