Update angular monorepo to v21.2.15

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@angular/compiler (source)	21.2.14 → 21.2.15
@angular/compiler-cli (source)	21.2.14 → 21.2.15

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Release Notes

angular/angular (@​angular/compiler)

v21.2.15

Compare Source

common

Commit	Type	Description
7f4ac78994	fix	add upper bounds for digitsInfo
300f61feb3	fix	sanitize placeholder

compiler

Commit	Type	Description
0b07f47bd6	fix	normalize tag names with custom namespaces in DomElementSchemaRegistry (#​68925)
eb1cbbf2eb	fix	prevent namespaced SVG <style> elements from being stripped
cc1378d54b	fix	sanitize dynamic href and xlink:href bindings on SVG a elements (#​68925)
782e01594e	fix	strip namespaced SVG script elements during template compilation (#​68925)

core

Commit	Type	Description
ff12fe55ac	fix	normalize tag names in runtime i18n attribute security context lookup (#​68925)
e6fe77cc97	fix	sanitize meta selectors
daaf32937f	fix	support prefix-insensitive DOM schema lookups and compile-time i18n attribute validation (#​68925)
dada86e43d	fix	synchronize core sanitization schema with compiler (#​68925)

http

Commit	Type	Description
582a417bd2	fix	exclude withCredentials requests from transfer cache
5c6d6df34b	fix	skip TransferCache for cookie-bearing requests by default

platform-server

Commit	Type	Description
37e8aadf87	fix	prevent SSRF bypasses via backslash URLs in HttpClient
72696e244e	fix	secure location and document initialization against SSRF and path hijack

service-worker

Commit	Type	Description
b8bd49341d	fix	Preserves explicit 'credentials: omit' in asset requests
ca32fc1000	fix	Preserves HTTP cache mode in asset group requests

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