chore: batch update 5 dependencies

[hermclaw]

Consolidates 5 open dependabot PRs into a single update:

• bootsnap 1.24.0 → 1.24.5 (Bump bootsnap from 1.24.0 to 1.24.4 #147)
• thruster 0.1.20 → 0.1.21 (Bump thruster from 0.1.20 to 0.1.21 #150)
• jbuilder 2.14.1 → 2.15.0 (Bump jbuilder from 2.14.1 to 2.15.0 #149)
• metainspector 5.17.1 → 5.17.2 (Bump metainspector from 5.17.1 to 5.17.2 #148)
• sqlite3 2.9.3 → 2.9.4 (Bump sqlite3 from 2.9.3 to 2.9.4 #146)

Also picked up (transitive): faraday 2.14.2, faraday-net_http 3.4.3, json 2.19.5, minitest 6.0.6, nokogiri 1.19.3

Skipped: image_processing (#151) — bundler could not resolve v2.0.0 (likely breaking change, needs separate review).

All 17 tests pass ✅