Fix workflow triggers for Forked-Repo-PRs

[MHHukiewitz]

Problem: build-wheels.yml and pytest-docker.yml would not trigger if a PR was created from a forked repo.

Solution: Trigger all the workflows on direct pushes to main and on any PR to main.

Indication comes from #69 and #47, which were both PRs that did not trigger all workflows and both were attempted merges from 1yam's forked repo.

[hoh]

We should run CI on all branches and Pull Requests.

What about using this ?

on:
  push:
  pull_request:

[MHHukiewitz]

on:
  push:
[...]

Won't this cause the CI to trigger on every push on every branch, even without PR in place?

Thought it would be important to save on unnecessary GH actions usage

[hoh]

Good point.

The main thing that consumes our CI usage is the replication due to the matrix of versions.

We should run:

• build-wheels.yml on main and PRs that target main
• code quality on every push
• skip upgrading packages from the code quality on every push
• keep pytest-docker.yml on PR to main