Adds an E2E test for TypeScript ESLint

[SamChou19815]

What's the problem this PR addresses?

#368 - Adding one basic test for ESLint with typescript-eslint

[arcanis]

Looks good, thanks! I'll just move it to the regular ESLint workflow file so as not to increase too much the number of E2E workflows (I'd like to keep one file per tool as much as possible) 👍

[SamChou19815]

@arcanis I added source scripts/e2e-setup-ci.sh to the typescript-eslint step and it's now passing.
I guess the temporary directory created int he e2e setup script helps. Without this line, the integration test is directly run inside the repo root folder, and the cache in the repo folder might interfere with the test.

[arcanis]

Well spotted 👍