Update actix-web-lab requirement from 0.19.1 to 0.20.1

Updates the requirements on actix-web-lab to permit the latest version.

Release notes

Sourced from actix-web-lab's releases.

actix-web-lab: v0.19.2

• Add extract::ReconstructedPath extractor.
• Add header::XForwardedPath header.
• Expose extract::DEFAULT_BODY_LIMIT.

Commits

• b2db36b chore(actix-web-lab): prepare release 0.19.1
• 2d992d9 fmt justfile
• 558da78 add x-forwarded-prefix header (#61)
• f77644f test: improve coverage on TrustedIps
• 68b4b40 ci: use rustc v1.72
• 847105c ci: add codecov
• a2e8b25 chore(actix-client-ip-cloudflare): prepare release 0.1.1
• ca8f129 test: add cf client IP doc example
• 37421b3 docs: flesh out client-ip-cloudflare rustdoc
• 8721c7d docs(client-ip-cloudflare): document crate features
• Additional commits viewable in compare view

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