Update actions/setup-dotnet action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	New value	References	Sourcegraph
actions/setup-dotnet	action	major	v6	source

Test plan: CI should pass with updated dependencies. No review required: this is an automated dependency update PR.

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Release Notes

actions/setup-dotnet (actions/setup-dotnet)

v6.0.0

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What's Changed

• Migrate to ESM and upgrade dependencies by @​priyagupta108 in #​752
• Bump actions/checkout from 6.0.3 to 7.0.0 by @​dependabot[bot] in #​751
• chore(deps): bump @​actions/cache to 6.2.0 by @​philip-gai in #​756

New Contributors

• @​philip-gai made their first contribution in #​756

Full Changelog: actions/setup-dotnet@v5...v6.0.0

v6

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v5.4.0

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What's Changed

Enhancements

• Improve global.json SDK version validation for rollForward by @​priyagupta108 in #​742
• Pin actions to commit SHAs in workflows by @​priya-kinthali in #​744
• Expand the CSC problem matcher to light up more errors on GitHub. by @​StephenCleary in #​717

Documentation

• Docs(action): Explicitly mark all optional inputs with required: false by @​kranthipoturaju in #​737

Bug Fixes

• Fix global.json creation command by @​michal2612 in #​694

Dependency Updates

• Upgrade @​actions/cache to 5.1.0, log cache write denied by @​jasongin in #​746

New Contributors

• @​jasongin made their first contribution in #​746
• @​michal2612 made their first contribution in #​694
• @​kranthipoturaju made their first contribution in #​737
• @​StephenCleary made their first contribution in #​717

Full Changelog: actions/setup-dotnet@v5...v5.4.0

v5.3.0

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What's Changed

Enhancements

• Add dotnet-version: latest support with dotnet-channel input by @​mahabaleshwars in #​730
• Support global.json's rollForward latest* variants by @​js6pak in #​538
• Improve version resolution by @​akoeplinger in #​560

Dependency Updates

• Upgrade @​actions/* and fast-xml-parser dependencies by @​Copilot in #​728
• Update install scripts to v2026.05.19 (preserve archive links) by @​MichaelSimons in #​736
• Add rollForward note in README, improve proxy health check in e2e tests and bump version to v5.3.0 by @​priyagupta108 in #​738

Bug Fixes

• Update Test Proxy job by @​priya-kinthali in #​703

New Contributors

• @​Copilot made their first contribution in #​728
• @​akoeplinger made their first contribution in #​560
• @​MichaelSimons made their first contribution in #​736
• @​js6pak made their first contribution in #​538

Full Changelog: actions/setup-dotnet@v5...v5.3.0

v5.2.0

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What's changed

Enhancements

• Add support for workloads input by @​gowridurgad in #​693
• Add support for optional architecture input for cross-architecture .NET installs by @​priya-kinthali in #​700

Dependency Updates

• Upgrade fast-xml-parser from 4.4.1 to 5.3.6 by @​dependabot in #​671
• Upgrade minimatch from 3.1.2 to 3.1.5 by @​dependabot in #​705

Full Changelog: actions/setup-dotnet@v5...v5.2.0

v5.1.0

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What's Changed

Documentation

• Readme update for environment variable on self hosted linux runners by @​priya-kinthali in #​689
• Contributor icon updates by @​Falco20019 in #​604

Dependency updates

• Upgrade actions/checkout from 5 to 6 by @​dependabot in #​684
• Upgrade to latest actions packages by @​salmanmkc in #​687
• Upgrade dependencies in testproject and checkout in Readme by @​priya-kinthali in #​692

New Contributors

• @​priya-kinthali made their first contribution in #​689
• @​Falco20019 made their first contribution in #​604

Full Changelog: actions/setup-dotnet@v5...v5.1.0

v5.0.1

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What's Changed

• Upgrade typescript from 5.4.2 to 5.9.2 and document breaking changes in v5 by @​dependabot in #​624
• Upgrade eslint-plugin-jest from 27.9.0 to 29.0.1 by @​dependabot in #​648
• Upgrade actions/publish-action from 0.3.0 to 0.4.0 and update macos-13 to macos-15-intel by @​dependabot in #​665

Full Changelog: actions/setup-dotnet@v5...v5.0.1

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Test Results

0 tests  ±0   0 ✅ ±0   0s ⏱️ ±0s
0 suites ±0   0 💤 ±0 
0 files   ±0   0 ❌ ±0 

Results for commit d241a70. ± Comparison against base commit 9dd188e.