Bump actix-http from 3.12.0 to 3.12.1 in the cargo group across 1 directory

[dependabot]

Bumps the cargo group with 1 update in the / directory: actix-http.

Updates actix-http from 3.12.0 to 3.12.1

Release notes

Sourced from actix-http's releases.

actix-http: v3.12.1

Notice: This release contains a security fix. Users are encouraged to update to this version ASAP.

• SECURITY: Reject HTTP/1 requests with ambiguous request framing from Content-Length and Transfer-Encoding headers to prevent request smuggling.
• Encode the HTTP/1 Connection: Upgrade header in Camel-Case when camel-case header formatting is enabled.#3953
• Fix HeaderMap iterators' len() and size_hint() implementations for multi-value headers.
• Update rand dependency to 0.10.
• Update sha1 dependency to 0.11.

#3953: actix/actix-web#3953

Commits

• 0fb8945 chore(http): prepare v3.12.1 (#4029)
• 3c056bd Merge commit from fork
• e6d0991 chore(multipart,derive): prepare 0.8.0 (#4027)
• 4434a49 fix(multipart): count ignored fields towards MultipartFormConfig li… (#4026)
• be62050 fix(multipart): set cap for parser buffering (#4025)
• be4566d fix(multipart): do not parse with fixed index not to panic (#4024)
• 6d2c2f4 chore(http): upgrade sha1 to 0.11 (#4022)
• 253cd4f chore: address new advisories (#4023)
• e766ca6 chore: upgrade rand to 0.10.1 (#4021)
• d747959 build(deps): bump EmbarkStudios/cargo-deny-action from 2.0.15 to 2.0.16 (#4018)
• Additional commits viewable in compare view

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