Update angular monorepo to v20.3.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@angular/compiler (source)	20.3.3 -> 20.3.4
@angular/compiler-cli (source)	20.3.3 -> 20.3.4
@angular/forms (source)	20.3.3 -> 20.3.4
@angular/platform-browser-dynamic (source)	20.3.3 -> 20.3.4

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Release Notes

angular/angular (@​angular/compiler)

v20.3.4

Compare Source

core

Commit	Type	Description
853ed169a8	fix	ensure missing leave animations don't queue leave animations (#​64226)
6fed986b7a	fix	Fixes animations in conjunction with content projection (#​63776)
76fe5599fe	fix	handle undefined CSS time values in parseCssTimeUnitsToMs function (#​64181)
3b959105be	fix	prevent early exit from leave animations when multiple transitions are present (#​64225)

migrations

Commit	Type	Description
65884895ff	fix	preserve component imports when pruning NgModules in standalone migration (#​64186)

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