Use prek

[joostlek]

Migrate from pre-commit to prek.

• Move built-in hooks (check-case-conflict, check-executables-have-shebangs, check-json, check-merge-conflict, check-symlinks, check-toml, check-xml, check-yaml, detect-private-key, end-of-file-fixer, no-commit-to-branch, trailing-whitespace) from the local repo into a new builtin repo block in .pre-commit-config.yaml.
• Replace the pre-commit dev dependency with prek = "0.3.9".
• Add a dedicated prek-builtin-hooks job in the linting workflow that installs prek via pipx and runs each built-in hook standalone; switch remaining pre-commit run invocations to prek run.
• Update README pre-commit references to prek.
• Add [*.yaml] indent_size to .editorconfig.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud