chore(deps-dev): bump ruff from 0.15.20 to 0.16.1 in /backend in the backend group across 1 directory

[dependabot]

Bumps the backend group with 1 update in the /backend directory: ruff.

Updates ruff from 0.15.20 to 0.16.1

Release notes

Sourced from ruff's releases.

0.16.1

Release Notes

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

Documentation

• Cover pycon Markdown formatting (#27153)
• [flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
• [flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
• [pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

• Reduce syntax error noise by swallowing dedents like indents (#27170)
• Vendor latest annotate-snippets (#27033)

Contributors

• @​bxff
• @​anishgirianish
• @​Avasam
• @​epage
• @​LHMQ878

... (truncated)

Changelog

Sourced from ruff's changelog.

0.16.1

Released on 2026-07-30.

Preview features

• Add an option to opt out of human-readable names (#27160)
• [flake8-pytest-style] Make fixes safe by default and unsafe only when comments are present (PT018) (#27201)
• [pyupgrade] Skip fix when a defaulted TypeVar precedes a non-defaulted one (UP040, UP046, UP047) (#27133)
• [ruff] Fix false positive with unpacked arguments (RUF065) (#26959)

Bug fixes

• Bump gen-lsp-types to gracefully handle unknown enumeration values in LSP messages (#27230)
• [flake8-bugbear] Mark range as immutable (B008) (#27247)
• [flake8-comprehensions] NFKC-normalize keyword names in C408 fix (#26813)
• [flake8-return] Fix false positive when variable is read in finally clause (RET504) (#25441)
• [pydocstyle] Skip section detection inside RST directive bodies (D214, D405, D413) (#23635)
• [refurb] Parenthesize yield arguments in the FURB192 fix (#27192)

Rule changes

• [flake8-pytest-style] Mark PT022 fixes as unsafe (#26440)
• [refurb] Mark fixes that remove unknown separators as unsafe (FURB105) (#27200)

Server

• Fix indexing of excluded nested Ruff workspaces (#27303)
• Lint TOML files in the LSP (#26862)

Documentation

• Cover pycon Markdown formatting (#27153)
• [flake8-bandit] Document TYPE_CHECKING exception (S101) (#27004)
• [flake8-import-conventions] Document that extend-aliases can override default aliases (#27191)
• [pylint] Add missing fix safety gotchas for non-augmented-assignment (PLR6104) (#27250)

Other changes

• Reduce syntax error noise by swallowing dedents like indents (#27170)
• Vendor latest annotate-snippets (#27033)

Contributors

• @​bxff
• @​anishgirianish
• @​Avasam
• @​epage
• @​LHMQ878
• @​MichaReiser

... (truncated)

Commits

• 80790b3 Bump 0.16.1 (#27330)
• 63830f3 [ty] Borrow from constraint set storage less often (#27328)
• f40dca9 [ty] Preserve forwarded expanded-variadic diagnostic sources (#27266)
• 0d80497 Lint TOML files in the LSP (#26862)
• d91586b Update prek dependencies (#27293)
• 7da4b8b [ty] Respect bounds and constraints in generic materializations (#27228)
• b20daf7 [ty] refactor: add helper function to send partial results (#27249)
• 4d4c8fa [ty] Emit diagnostic when specializing a non-generic class (#26883)
• 7c3e2db [ty] Fix enum class container assignability (#27318)
• d5ef97f [flake8-return] Fix false positive when variable is read in finally claus...
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