Add e2e testing GitHub action (fixes #2)

[JonZeolla]

Summary of the contribution

This adds make e2e to run our e2e tests, and adds a github action which runs make e2e on PRs to main.

This builds on the GitHub actions introduced in #1

Prereq:

• [x] #13

Testing

1. Run make e2e locally
2. Observe the github actions output from this PR.

Checklist

• [X] Confirm that any associated issues are indicated in the pull request title
• [x] Rebase your PR against the latest commit within the target branch
• [X] Include steps to verify and test the intended change
• [X] Write or update unit tests and/or integration tests to verify your changes
• [X] Verify the basic functionality of the plugin by building and running locally via the end to end testing script
• [X] Indicate whether or not this is a breaking change
• [X] Ensure that any new dependencies are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0

[ottobackwards]

you want to rebase on main and force push this?

[JonZeolla]

@ottobackwards good to go, pending CI

[JonZeolla]

CI failed because http://downloads.digitalcorpora.org/corpora/network-packet-dumps/2008-nitroba/nitroba.pcap is serving 500s

[JonZeolla]

It looks like the 500 should have been a 404; they just moved the file.

[JonZeolla]

@ottobackwards ready to go