Update submodule to latest master in microsoft/main

[bot-for-go]

Hi! I'm a bot, and this is an automatically generated upstream sync PR. 🔃

After submitting the PR, I will attempt to enable auto-merge in the "merge commit" configuration.

For more information, visit sync documentation in microsoft/go-infra.

Upstream commits included in this update

• 38d1265e1a cmd/go: preserve vet export data in memory for dependent actions on failure
• c594198381 crypto/x509: reject empty GeneralSubtrees sequences
• 98d17e5bf4 crypto/x509: update x509-limbo tests
• 74cad37fc1 crypto/x509: restrict URI constraints to exact hosts
• 0b19268242 crypto/x509: restrict bare email constraints to exact hosts
• 714d9afb66 encoding/json: avoid calling MarshalText on named string map keys
• 0d1836382f crypto/tls: don't pin record-sized buffers while blocked in Read
• 78407c1122 cmd/compile: correctly mark interface calls as used for tail call wrappers
• 91ffdf91c1 net/http/internal/http2: use atomic.Bool for ClientConn.atomicReused
• 6ff3155b9c unicode/utf16: avoid overallocating in Encode
• 43bc472365 math: improve Log2 accuracy near 1
• cc740a9f1b archive/tar: return ErrHeader on PAX UID/GID integer overflow
• c320fc145b internal/runtime,math,runtime: fix source file paths in comments
• ba7fdba26b simd/archsimd: emulate "ReduceSum" for wasm, arm64, amd64
• 8b1c22e12f simd/archsimd: test SVE ops across all element shapes
• 76b21f0229 simd/archsimd: add SVE MulHigh
• cc71e4955c simd/archsimd: add SVE Mul
• 70c31c1f4f cmd/compile: include SVE predicate registers in arm64 callerSave
• 7f9af814e1 cmd/compile: add SizeAndAlign support to ssa check mode

View full diff on GitHub

[review-bot-for-go]

Thanks! Auto-approving.

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[Copilot]

🔵 Needs a closer look

This is an upstream submodule sync that implicitly updates a large surface area of Go source, so it should rely on full CI signal and a final human check before approval.

Pull request overview

This PR updates the go submodule (tracking https://github.com/golang/go) to the latest master revision, pulling in a set of upstream Go commits (notably including multiple crypto/x509 constraint-handling changes, cmd/go and cmd/compile fixes, and several library/runtime improvements).

Changes:

• Bump the go git submodule pointer to include the listed upstream commits.
• Incorporate upstream fixes across toolchain (cmd/go, cmd/compile) and core packages (e.g., crypto/x509, encoding/json, net/http2, math, archive/tar).

File summaries

File	Description
go	Updates the golang/go submodule pointer to a newer upstream master commit set.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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