Update environment to fix pip installation and fix CI

[Elisa-Visentin]

• removed all dependencies already installed by ctapipe
• fixed jupyterlab to latest version compatible with magic-cta-pipe
• fixed pyflakes errors which were preventing the CI to succeed
• formatted all code with black

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[aleberti]

Next time you can simply create a branch in this repository and do the changes there, you have all the rights to write in this repo. This makes it easier for me (and others) to test, because I can simply change to the branch of the PR and test.

[aleberti]

In any case, it works nicely. I will merge it.

[Elisa-Visentin]

Next time you can simply create a branch in this repository and do the changes there, you have all the rights to write in this repo. This makes it easier for me (and others) to test, because I can simply change to the branch of the PR and test.

When I created this PR I had no write access to this repository (we forgot to ask you for it) and I cannot persuade anybody to let me be a 'ghostwriter'.
Anyway thanks to @HealthyPear, too (for help and persuasion)

[aleberti]

Ah sorry, then my fault! Now you have the write rights, so no need to persuade anyone :)

[HealthyPear]

In any case, it works nicely. I will merge it.

The maintainers team should make sure that the master branch is actually protected by the CI pipeline otherwise the next PR will fail again.