Rollup: Do not normalize tsconfig path for Windows

[ms-tng]

Current Behavior

Rollup build fails on Windows with errors like this:

[plugin rpt2] error TS6059: File '/foo/bar/baz.ts' is not under 'rootDir' 'C:/foo/bar'. 'rootDir' is expected to contain all source files.

This is because since 81fe7bb the tsconfig path passed to rollup-plugin-typescript2 is built using joinPathFragments, which removes the drive letter on Windows.

Expected Behavior

Rollup build should not fail.

[vercel]

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1 Skipped Deployment

Name	Status	Preview	Updated (UTC)
nx-dev	⬜️ Ignored (Inspect)	Visit Preview	Apr 1, 2025 2:33pm

[nx-cloud]

View your CI Pipeline Execution ↗ for commit ace339d.

Command	Status	Duration	Result
nx affected --targets=lint,test,build,e2e,e2e-c...	❌ Failed	24m 42s	View ↗
nx run-many -t check-imports check-commit check...	✅ Succeeded	17s	View ↗
nx-cloud record -- nx-cloud conformance:check	✅ Succeeded	2s	View ↗
nx-cloud record -- nx format:check --base=028b5...	✅ Succeeded	2s	View ↗
nx-cloud record -- nx sync:check	✅ Succeeded	1s	View ↗
nx documentation	✅ Succeeded	1m 26s	View ↗

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☁️ Nx Cloud last updated this comment at 2025-04-01 15:01:24 UTC

[ms-tng]

The failing check is not related to my change: