Testing: Add E2E smoke test

[brandonroberts]

Type of feature

🍕 Feature

Current behavior

We need a smoke test to make sure the API doesn't produce a runtime error that isn't caught during the build

https://docs.nestjs.com/fundamentals/testing#end-to-end-testing

We can set up some environment variables to connect to our development database and use an open API endpoint to do a smoke test that its running and able to handle a request. In the future we can expand this to more tests.

Suggested solution

• Add environment variables to the development database to run within CI
• Set up and E2E test suite with Jest
• Add a test for hitting the /v1/repos endpoint and getting back results

Additional context

No response

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