deps: Update dependency ANcpLua.Roslyn.Utilities.Testing to 2.2.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ANcpLua.Roslyn.Utilities.Testing	2.2.0 → 2.2.1

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Release Notes

ANcpLua/ANcpLua.Roslyn.Utilities (ANcpLua.Roslyn.Utilities.Testing)

v2.2.1

What's Changed

• docs(agents): add ecosystem table by @​ANcpLua in #​83
• docs(agents): correct release flow — manual tag, auto GH release by @​ANcpLua in #​84
• ci(publish): adopt auto-bump-on-merge — match SDK pattern by @​ANcpLua in #​86
• ci(publish): grep -qFx + parenthesize publish if by @​ANcpLua in #​87
• refactor: unify range-indexer style across netstandard2.0 surface by @​ANcpLua in #​88
• chore(testing): ConfigureAwait sweep + EnvConfig surface tightening by @​ANcpLua in #​89

Full Changelog: ANcpLua/ANcpLua.Roslyn.Utilities@v2.2.0...v2.2.1

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