chore(deps): Update starlette requirement from >=1.3.1 to >=1.4.1

[dependabot]

Updates the requirements on starlette to permit the latest version.

Release notes

Sourced from starlette's releases.

Version 1.4.1

What's Changed

• Default thread_minimum_size in GZipResponder by @​Kludex in Kludex/starlette#3415

Full Changelog: Kludex/starlette@1.4.0...1.4.1

Changelog

Sourced from starlette's changelog.

1.4.1 (August 5, 2026)

Fixed

• Default thread_minimum_size to 128 KiB in GZipResponder, keeping it usable without the new keyword argument #3415.

1.4.0 (August 5, 2026)

Added

• Offload large GZip compression to a worker thread, keeping the event loop responsive. GZipMiddleware accepts a new thread_minimum_size parameter (default 128 KiB) controlling the minimum body chunk size compressed in a thread #3410.

Changed

• Use zlib.compressobj instead of GzipFile in GZipMiddleware, reducing memory usage during compression #3411.
• Lazily allocate GZipMiddleware compression resources, avoiding compressor allocation for responses that are never compressed #3407.

1.3.1 (June 12, 2026)

Fixed

• Enforce max_fields and max_part_size in FormParser #3329.
• Enforce FormParser limits in parser callbacks #3331.

1.3.0 (June 11, 2026)

Added

• Add httpx2 to the full extra #3323.
• Annotate the URLPath protocol parameter with Literal #3285.

Fixed

• Build request.url from structured components #3326.
• Clamp oversized suffix ranges in FileResponse #3307.
• Catch OSError alongside MultiPartException when closing temp files #3191.
• Avoid collapsing exception groups raised from user code #2830.
• Use removeprefix to strip the weak ETag indicator in is_not_modified #3193.
• Fix IndexError in URL.replace() on a URL with no authority #3317.
• Adjust testclient typing and warnings #3322.

1.2.1 (May 31, 2026)

Fixed

• Use httpx2 for type checking in the testclient module #3304.
• Add assert error for requires() when the request parameter is not a Request type #3298.

1.2.0 (May 28, 2026)

... (truncated)

Commits

• 9c55062 Version 1.4.1 (#3416)
• 152cef4 Default thread_minimum_size in GZipResponder (#3415)
• 3d6d6c2 Version 1.4.0 (#3413)
• cb824a1 Offload large GZip compression (#3410)
• 5567e27 Run ASGI benchmarks on a real event loop (#3412)
• be5bf5e Add GZip event-loop responsiveness benchmark (#3409)
• 7ed6b26 Use zlib.compressobj instead of GzipFile in GZipMiddleware (#3411)
• a375798 Lazily allocate GZipMiddleware compression resources (#3407)
• 0eb9ca8 Exercise GZipMiddleware benchmarks through ASGI (#3408)
• 08f29c9 Add GZipMiddleware bypass benchmarks (#3406)
• Additional commits viewable in compare view

[imran-siddique]

@dependabot rebase