fix(deps): bump @angular/compiler from 20.3.6 to 20.3.15

Bumps [@angular/compiler](https://github.com/angular/angular/tree/HEAD/packages/compiler) from 20.3.6 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] <[email protected]>

Author: dependabot[bot]

yarn.lock

@@ -322,9 +322,9 @@
     yargs "^18.0.0"
 
 "@angular/compiler@^20.3.6":
-  version "20.3.6"
-  resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-20.3.6.tgz#6a923fc62221fb019b057e94df72d12dc72159af"
-  integrity sha512-OdjXBsAsnn7qiW6fSHClwn9XwjVxhtO9+RbDc6Mf+YPCnJq0s8T78H2fc8VdJFp/Rs+tMZcwwjd9VZPm8+2XWA==
+  version "20.3.15"
+  resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-20.3.15.tgz#4220734ef6a59b28a23bb5dde376d5f341dfc227"
+  integrity sha512-lMicIAFAKZXa+BCZWs3soTjNQPZZXrF/WMVDinm8dQcggNarnDj4UmXgKSyXkkyqK5SLfnLsXVzrX6ndVT6z7A==
   dependencies:
     tslib "^2.3.0"