Upgrade dependencies to latest stable versions

[loris-av]

Summary

JS dependencies:

• addok-cluster: 0.11.0 → 0.12.0
• tabular-data-helpers: 0.0.13 → 0.0.14
• content-disposition: 0.5.4 → 1.0.1
• cors: 2.8.5 → 2.8.6
• dotenv: 17.2.3 → 17.3.1
• express: 4.21.2 → 5.2.1
• http-errors: 2.0.0 → 2.0.1
• into-stream: 8.0.1 → 9.1.0
• multer: 2.0.2 → 2.1.1
• supertest: 7.1.4 → 7.2.2

Python dependencies:

• addok: 1.3.0rc1 → 1.3.2 (stable release)
• addok-fr: 1.0.1 → 1.1.0
• addok-france: 1.1.3 → 1.2.0
• addok-sqlite-store: 1.0.1 → 1.1.0

Bug fix:

• Fix req.file.originalName → req.file.originalname in lib/csv.js (multer 2.1 breaking change)

Notes

• Express 5 is backward-compatible for this codebase (no deprecated APIs used)
• All 42 existing tests pass
• Lint passes with xo 0.60

Test plan

• npm run lint passes
• npm test passes (42 tests)
• Docker build succeeds
• Manual smoke test with real addok data