build(deps): Bump golang.org/x/net from 0.55.0 to 0.56.0

[dependabot]

Bumps golang.org/x/net from 0.55.0 to 0.56.0.

Commits

• 9e7fdbf internal/http3: fix wrong argument being given when validating header value
• b686e5f internal/http3: add gzip support to transport
• 8a34885 go.mod: update golang.org/x dependencies
• 72eaf98 dns/dnsmessage: correctly validate SVCB record parameter order
• 82e7868 dns/dnsmessage: avoid panic when parsing SVCB record with truncated data
• b64f1fa internal/http3: add server support for "Trailer:" magic prefix
• 2707ee2 internal/http3: implement HTTP/3 clientConn methods
• 31358cc internal/http3: snapshot response headers at WriteHeader time
• 8ecbaa9 html: don't adjust xml:base
• 8ae811a html: properly handle end script tag in fragment mode
• Additional commits viewable in compare view

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