chore(deps): bump all dependencies (Dependabot consolidation)
Consolidate 20 Dependabot PRs from the GitHub mirror into a single MR.
## Changes
### Go deps (engine)
- aws-sdk-go-v2 v1.41.0 → v1.41.4
- aws-sdk-go-v2/config v1.32.5 → v1.32.12
- gorilla/websocket v1.5.0 → v1.5.3
- docker/cli v27.1.1 → v29.3.0
- rs/xid v1.5.0 → v1.6.0
- golang.org/x/oauth2 v0.30.0 → v0.36.0
- go.opentelemetry.io/otel/sdk v1.21.0 → v1.40.0
### Docker base images
- docker 27.5.1 → 29.3.0
- golang 1.24 → 1.26
- nginx 1.17 → 1.29 (swagger-ui), 1.20.1 → 1.29.6 (ce UI)
- node 16.14 → 22 (ce UI build)
### UI (npm)
- byte-size ^8.1.0 → ^9.0.1
- clsx ^1.1.1 → ^2.1.1
- eslint-plugin-cypress ^2.13.3 → ^6.1.0
- Various in-range bumps via lockfile update
### GitHub Actions
- actions/checkout v2 → v6
- github/codeql-action v1 → v4
### Deferred
- eslint 8→9 requires config migration (separate MR)
See: https://github.com/postgres-ai/database-lab-engine/pulls
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