chore(deps): update dependency starlette to ^0.19.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
starlette	^0.18.0 -> ^0.19.0

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Release Notes

encode/starlette

v0.19.0

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Added

• Error handler will always run, even if the error happens on a background task #​761.
• Add headers parameter to HTTPException #​1435.
• Internal responses with 405 status code insert an Allow header, as described by RFC 7231 #​1436.
• The content argument in JSONResponse is now required #​1431.
• Add custom URL convertor register #​1437.
• Add content disposition type parameter to FileResponse #​1266.
• Add next query param with original request URL in requires decorator #​920.
• Add raw_path to TestClient scope #​1445.
• Add union operators to MutableHeaders #​1240.
• Display missing route details on debug page #​1363.
• Change anyio required version range to >=3.4.0,<5.0 #​1421 and #​1460.
• Add typing-extensions>=3.10 requirement - used only on lower versions than Python 3.10 #​1475.

Fixed

• Prevent BaseHTTPMiddleware from hiding errors of StreamingResponse and mounted applications #​1459.
• SessionMiddleware uses an explicit path=..., instead of defaulting to the ASGI 'root_path' #​1512.
• Request.client is now compliant with the ASGI specifications #​1462.
• Raise KeyError at early stage for missing boundary #​1349.

Deprecated

• Deprecate WSGIMiddleware in favor of a2wsgi #​1504.
• Deprecate run_until_first_complete #​1443.

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