Chore(deps): Bump @angular/compiler from 20.3.12 to 20.3.15 in /src-ui

Bumps [@angular/compiler](https://github.com/angular/angular/tree/HEAD/packages/compiler) from 20.3.12 to 20.3.15.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/20.3.15/packages/compiler)

---
updated-dependencies:
- dependency-name: "@angular/compiler"
  dependency-version: 20.3.15
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

src-ui/package.json

@@ -13,7 +13,7 @@
   "dependencies": {
     "@angular/cdk": "^20.2.13",
     "@angular/common": "~20.3.14",
-    "@angular/compiler": "~20.3.12",
+    "@angular/compiler": "~20.3.15",
     "@angular/core": "~20.3.12",
     "@angular/forms": "~20.3.12",
     "@angular/localize": "~20.3.12",