fix(ci): only run pre-commit on files in the main EV repo

[joanise]

PR Goal?

Fix the pre-commit CI failures

Fixes?

Fixes #555

Feedback sought?

rubber stamping

Priority?

high, since this causes CI to fail on PRs touching submodules

Confidence?

high

[semanticdiff-com[bot]]

Review changes with SemanticDiff.

[github-actions[bot]]

CLI load time: 0:00.23
Pull Request HEAD: 2bca784934727f72b03a967f11469b020cebcbd0
Imports that take more than 0.1 s:
import time: self [us] | cumulative | imported package

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 74.64%. Comparing base (bbc883d) to head (2bca784).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #557 +/- ## ======================================= Coverage 74.64% 74.64% ======================================= Files 46 46 Lines 3132 3132 Branches 510 510 ======================================= Hits 2338 2338 Misses 693 693 Partials 101 101 ```

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