Update Rust crate axum-extra to v0.9.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
axum-extra	workspace.dependencies	patch	0.9.0 -> 0.9.4

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Release Notes

tokio-rs/axum (axum-extra)

v0.9.4: axum-extra - v0.9.4

Compare Source

• added: The response::Attachment type (#​2789)

v0.9.3: axum-extra - v0.9.3

Compare Source

• added: New tracing feature which enables logging rejections from
  built-in extractor with the axum::rejection=trace target (#​2584)

v0.9.2: axum-extra - v0.9.2

Compare Source

• added: Implement TypedPath for WithRejection<TypedPath, _>
• fixed: Documentation link to serde::Deserialize in JsonDeserializer extractor (#​2498)
• added: Add is_missing function for TypedHeaderRejection and TypedHeaderRejectionReason (#​2503)

v0.9.1: axum-extra - v0.9.1

Compare Source

• change: Update version of multer used internally for multipart (#​2433)
• added: JsonDeserializer extractor (#​2431)

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