security: update Go dependencies to fix vulnerabilities

[falcorocks]

Summary

Updates Go dependencies to resolve security vulnerabilities identified by Grype.

Changes

• Go toolchain: 1.23.4 → 1.24.6 (fixes CVE-2025-47907)
• golang.org/x/crypto: v0.31.0 → v0.36.0 (fixes GHSA-hcg3-q754-cr77)
• golang.org/x/oauth2: v0.24.0 → v0.27.0 (fixes GHSA-6v2p-p543-phr9)
• github.com/golang-jwt/jwt/v4: v4.5.1 → v4.5.2 (fixes GHSA-mh63-6h87-95cp)
• golang.org/x/net: v0.32.0 → v0.38.0 (fixes GHSA-vvgc-356p-c3xw, GHSA-qxp5-gwg8-xv66)

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[falcorocks]

@halvards could you please have a look at this one? 🙏