Recompile agentic workflow with gh-aw v0.86.2

Regenerate the weekly-use-effect-review lock file so its frontmatter
hash matches the Bun 1.4.2 pin, and commit the generated actions lock
that pins gh-aw-actions/setup to its commit SHA.

Assistant-model: Claude Opus 5.5
Assistant-workflow: inline
Assistant-duration: 9m converged, estimated 5m
Assistant-verification: gh aw compile passed: weekly-use-effect-review compiled with v0.86.2
Assistant-verification: bun run ci passed: dprint, oxlint, token checks
User-preference: Recompile gh-aw lock files with gh aw rather than hand-editing
Co-authored-by: Alex Lavaee <lavaman131@github.com>