GH-51140: [C++] Require simdjson 4.3.0 for fractured_json APIs

[tadeja]

Rationale for this change

Fix#51140, CMake configuration should not accept simdjson earlier than v4.3.0.

What changes are included in this PR?

Set ARROW_SIMDJSON_REQUIRED_VERSION to "4.3.0"

Are these changes tested?

Yes. Locally, CMake configuration rejects system simdjson 4.2.3 now
CMake Error at cmake_modules/ThirdpartyToolchain.cmake:316 (message):
Couldn't find simdjson >= 4.3.0

Are there any user-facing changes?

No.

• GitHub Issue: [C++] Require simdjson 4.3.0 for fractured_json APIs #51140

[github-actions]

⚠️ GitHub issue #51140has been automatically assigned in GitHub to PR creator.

[tadeja]

@github-actions crossbow submit test-build-vcpkg-win test-ubuntu-22.04-cpp-bundled

[Copilot]

🟢 Approval recommended

The change is narrowly scoped, matches the documented minimum simdjson API requirement, and reduces the risk of configuration-time acceptance of incompatible system versions.

Pull request overview

Updates the C++ third-party dependency configuration to require simdjson >= 4.3.0, matching the minimum version needed for the fractured_json APIs used in Arrow and preventing misconfigured builds with older system simdjson installs.

Changes:

• Bump ARROW_SIMDJSON_REQUIRED_VERSION from 4.0.0 to 4.3.0 in the CMake toolchain dependency resolution.

File summaries

File	Description
cpp/cmake_modules/ThirdpartyToolchain.cmake	Raises the minimum accepted simdjson version to avoid build failures when system simdjson is < 4.3.0.

Review details

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

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[github-actions]

Revision: f3018b3

Submitted crossbow builds: ursacomputing/crossbow @ actions-0a31401513

Task	Status
test-build-vcpkg-win
test-ubuntu-22.04-cpp-bundled

[kou]

+1

[rok]

Regarding simdjson version - we had a version discussion here already - #50568 (comment). TLDR: ubuntu lags, only 26.0.10 has 4.6.8, while 26.0.4 has 4.2.4.