chore(deps): bump github.com/go-chi/chi/v5 from 5.2.5 to 5.3.0 in the go group

[dependabot]

Bumps the go group with 1 update: github.com/go-chi/chi/v5.

Updates github.com/go-chi/chi/v5 from 5.2.5 to 5.3.0

Release notes

Sourced from github.com/go-chi/chi/v5's releases.

v5.3.0

What's Changed

• Use strings.ReplaceAll where applicable by @​JRaspass in go-chi/chi#1046
• Propagate inline middlewares across mounted subrouters by @​LukasJenicek in go-chi/chi#1049
• add go 1.26 to ci by @​pkieltyka in go-chi/chi#1052
• Remove last uses of io/ioutil by @​JRaspass in go-chi/chi#1054
• Simplify chi.walk with slices.Concat by @​JRaspass in go-chi/chi#1053
• Apply the stringscutprefix modernizer by @​JRaspass in go-chi/chi#1051
• Bump minimum Go to 1.23, always use request.Pattern by @​JRaspass in go-chi/chi#1048
• middleware: fix httpFancyWriter.ReadFrom double-counting bytes with Tee by @​alliasgher in go-chi/chi#1085
• Fix typo in Route doc comment by @​gouwazi in go-chi/chi#1073
• fix: set Request.Pattern from RoutePattern() by @​leno23 in go-chi/chi#1097
• feat: middleware.ClientIP, a replacement for middleware.RealIP by @​VojtechVitek in go-chi/chi#967

New Contributors

• @​LukasJenicek made their first contribution in go-chi/chi#1049
• @​alliasgher made their first contribution in go-chi/chi#1085
• @​gouwazi made their first contribution in go-chi/chi#1073
• @​leno23 made their first contribution in go-chi/chi#1097

SECURITY: middleware.ClientIP, a replacement for middleware.RealIP

@​VojtechVitek submitted PR #967, which introduces middleware.ClientIP — a replacement for middleware.RealIP that closes the three open spoofing advisories:

• GHSA-9g5q-2w5x-hmxf — IP spoofing via XFF in RemoteAddr resolution (convto)
• GHSA-rjr7-jggh-pgcp — RealIP allows IP spoofing via unvalidated XFF (rezmoss)
• GHSA-3fxj-6jh8-hvhx — IP spoofing in middleware.RealIP (Saku0512, Critical / 9.3)

It also addresses issues outlined at:

• go-chi/chi#708
• https://adam-p.ca/blog/2022/03/x-forwarded-for/
• go-chi/chi#711
• go-chi/chi#453
• go-chi/chi#908

middleware.RealIP is deprecated in this PR with pointers to the new API.

The deprecation only adds a // Deprecated: doc comment; the function keeps working for backward compatibility.

Why a new middleware (not "fix RealIP in place")

RealIP has two unfixable design choices: it mutates r.RemoteAddr, and it tries to be a one-size-fits-all default by walking a hard-coded list of headers any client can supply. Per adam-p's "The perils of the 'real' client IP" (which calls chi out by name on this), there is no safe default — the user must pick their trust source explicitly.

The new API

Four middlewares, two accessors. Pick exactly one middleware based on your infrastructure, read the result with one of the two accessors:

// One of the four. There is no safe default — pick exactly one.
func ClientIPFromHeader(trustedHeader string) func(http.Handler) http.Handler
func ClientIPFromXFF(trustedIPPrefixes ...string) func(http.Handler) http.Handler
func ClientIPFromXFFTrustedProxies(numTrustedProxies int) func(http.Handler) http.Handler
</tr></table> 

... (truncated)

Commits

• 3b17157 feat: middleware.ClientIP, a replacement for middleware.RealIP (#967)
• 818fdcf fix: set Request.Pattern from RoutePattern() (#1097)
• f975af0 Fix typo in Route doc comment (#1073)
• 4ef87ea middleware: fix httpFancyWriter.ReadFrom double-counting bytes with Tee (#1085)
• a54874f Bump minimum Go to 1.23, always use request.Pattern (#1048)
• 3328d4d Apply the stringscutprefix modernizer (#1051)
• be60b2e Simplify chi.walk with slices.Concat (#1053)
• a36a925 Remove last uses of io/ioutil (#1054)
• 7d93ee3 add go 1.26 to ci (#1052)
• 903cff2 Propagate inline middlewares across mounted subrouters (#1049)
• Additional commits viewable in compare view

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[Skarlso]

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