chore(deps): bump traefik from v3.7.10 to v3.7.11 in /compose/production/traefik

[dependabot]

Bumps traefik from v3.7.10 to v3.7.11.

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[claude]

Review Summary

This is a routine Dependabot dependency bump: traefik base image in compose/production/traefik/Dockerfile goes from v3.7.10 → v3.7.11 (patch release). No application code, logic, or tests are touched.

Findings: None.

• Code quality: N/A — single-line Dockerfile tag change.
• Bugs: None found; verified no other references to the old v3.7.10 tag remain in the repo (only a historical CHANGELOG.md entry from a prior bump, which is expected and unaffected).
• Performance: No impact.
• Security: Patch releases of Traefik typically include security/bugfixes — bumping is generally a net positive. Worth a quick glance at the Traefik v3.7.11 release notes to confirm no breaking changes before merge, but nothing in this diff itself is concerning.
• Test coverage: N/A for this change; no tests needed for a base image patch bump.

LGTM to merge.