.github: make lint workflow run on push and dispatch

[ee7]

Previously, this workflow ran only on pull request.

Closes: #51

[miki725]

we can do this although officially the pre-commit workflow is no longer recommended and as its an open-source I switched it to pre-commit.ci which:

• usually runs faster
• will automatically send PRs bumping versions in pre-commit-config.yaml
• if there are any issues in the PR will automatically fix them - see testing pre-commit.ci autofix #56 for example

as such I actually disabled the lint.yml in github right now. as pre-commit.ci cannot run things on merge/push, we could use remove pull_request from link.yml and use it for pushes on main and then use pre-commit.ci for the PRs?