deps: update module github.com/lestrrat-go/jwx/v3 to v4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
github.com/lestrrat-go/jwx/v3	v3.1.0 → v4.0.0

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Release Notes

lestrrat-go/jwx (github.com/lestrrat-go/jwx/v3)

v4.0.0

Compare Source

Changes

v4 has many incompatibilities with v3. To see the full list of differences between
v3 and v4, please read the Changes-v4.md file. Coding Agents should read MIGRATION-v4.md

v4.0.0 - 19 Apr 2026

• Initial v4 release. Major features:
  • Lighter: Core / Companion module separation. Less dependencies in core.
  • Faster: Use of generics and other optimizations make v4 2x~3x faster than before.
  • Quantum-Ready: ML-KEM and ML-DSA, HPKE (+Hybrid) are supported through companion modules.
• See Changes-v4.md for a full set of Changes since v3.

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Configuration

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[renovate]

ℹ️ Artifact update notice

File name: go.mod

In order to perform the update(s) described in the table above, Renovate ran the go get command, which resulted in the following additional change(s):

• 1 additional dependency was updated

Details:

Package	Change
github.com/lestrrat-go/dsig	v1.2.1 -> v1.3.0

[daniel-weisse]

Requires json/v2
Let's hold off on this until this is not gated behind a build tag anymore