deps(backend): update import-linter requirement from >=2.0 to >=2.11

[dependabot]

Updates the requirements on import-linter to permit the latest version.

Changelog

Sourced from import-linter's changelog.

2.11 (2026-03-06)

• Add --version flag to lint-imports and import-linter commands.
• Make fastapi and uvicorn optional via the ui extra (pip install import-linter[ui]).
• Bugfix: fix back button navigation in explore command.
• Provide lower limits for fastapi and uvicorn in pyproject.toml.
• Switch to nox for testing.

2.10 (2026-02-06)

• Add import-linter group command, with import-linter lint alias.
• Add import-linter explore command.
• Add import-linter drawgraph command.

2.9 (2025-12-11)

• Support passing namespaces as root packages, not just portions.
• Bugfix: support Python 3.14 syntax.

2.8 (2025-12-08)

• Fix logo display bug on Windows (fall back to simpler heading) seddonym/import-linter#309
• Rewrite docs (and switch from Sphinx to mkdocs).

2.7 (2025-11-19)

• Print using rich instead of click.
• Remove pluggable Printer class.
• Add ascii art logo.
• Add progress animations when building graph and checking contracts.

2.6 (2025-11-10)

• Add acyclic_siblings contract type.
• Add contract field IntegerField.
• Drop support for Python 3.9.

2.5.2 (2025-10-09)

• Fix build issue with PyPI description.

2.5.1 (2025-10-09)

• Correct documentation that incorrectly stated that protected modules are allowed to import each other.
• Officially support Python 3.14.

2.5 (2025-09-15)

... (truncated)

Commits

• fabeab7 Release v2.11
• af956e1 Use nox for CI
• e0005c4 Delegate to nox to run the tests from the justfile
• 61df307 Add test_earliest_dependencies to noxfile
• 736e4d3 Add noxfile for testing under each Python version
• 5cea377 Add ability to run nox
• 521b90b Tweak lowest dependencies of ui
• 903a61d Don't run tests for Python 3.9
• b447e69 Move httpx to dev dependency
• 230b22c Rename dev-no-ui to dev-minimal
• Additional commits viewable in compare view

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