fix(lint): resolve E001, E005, E105, E320 across oci and homebrew
- E001: extract opt_true helper to reduce cyclomatic complexity in
Docker.config_jsont
- E005: extract bottle_steps, formula_update_steps, discover_bottles
to shorten long functions
- E105: simplify catch-all match in attestation.ml
- E320: shorten test identifiers with 5+ underscores in test_push.ml