chore(deps): update dependency polyfill to 9.13.0

[thomhurst]

This PR contains the following updates:

Package	Type	Update	Change
Polyfill	nuget	minor	9.12.0 → 9.13.0

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Release Notes

SimonCropp/Polyfill (Polyfill)

v9.13.0

Compare Source

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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This PR has been generated by Renovate Bot.

[claude]

Code Review

Type: Dependency update (Renovate Bot)
Change: Bumps Polyfill package from 9.12.0 → 9.13.0 in TUnit.Core/TUnit.Core.targets

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Summary

This is a routine minor dependency update generated by Renovate Bot. The change is a single-line version bump to the _TUnitPolyfillVersion property in the MSBuild targets file.

Assessment

No issues found. This is a clean, minimal update:

• The change is isolated to a single version string — no logic or API surface is affected.
• The Polyfill package is a compile-time source generator (SimonCropp/Polyfill), so a minor version bump only adds new polyfill members without removing or altering existing ones — no breaking changes expected.
• Auto-merge is appropriately enabled for this class of update.
• The diff is exactly what we'd expect: one line changed, no collateral modifications.

Since this is a MINOR version bump (9.12.0 → 9.13.0), semver guarantees backwards compatibility. Safe to merge.