Github actions (Testing, linting)

[robinpdev]

Setting up github actions when pushing/merging commits. Linting first, then testing once we settled on which frameworks to use

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1. Linting
2. testing

[robinpdev]

I'll first need to add some linting to the next and Django projects first, will be looking at trottoir-2 for inspiration again

[axellorreyne]

@robinpdev can this issue be closed?

[robinpdev]

Maybe, testing is not yet implemented at all in the project, so cant really make a github action for that