chore(deps): update dependency ng-packagr to v21.2.5

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ng-packagr	21.0.1 → 21.2.5

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Release Notes

ng-packagr/ng-packagr (ng-packagr)

v21.2.5

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Bug Fixes

• ng-packagr: invalidate angularDiagnosticCache for html changes (2312433)

v21.2.3

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Bug Fixes

• ng-packagr: resolve imports with TS extensions in rollup (5629808), closes #​3281

v21.2.2

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Bug Fixes

• default generated package.json type to module (f499dc9)

v21.2.1

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Bug Fixes

• ensure dts sourcemaps point to original ts files (c324321)

v21.2.0

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v21.1.0

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Features

• add importAttributesKey: 'with' to Rollup output options (ba4f690), closes #​3212

Bug Fixes

• correctly identify external modules (7c24c84)

21.0.1 (2025-12-15)

Bug Fixes

• correctly identify external modules (e0f7b22)

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