build(deps): bump @angular/core in /openvidu-components-angular

Bumps [@angular/core](https://github.com/angular/angular/tree/HEAD/packages/core) from 20.3.15 to 20.3.18.
- [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/v20.3.18/packages/core)

---
updated-dependencies:
- dependency-name: "@angular/core"
  dependency-version: 20.3.18
  dependency-type: direct:production
...

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

Author: dependabot[bot]

openvidu-components-angular/package-lock.json

@@ -3,7 +3,7 @@
 		"@angular/animations": "20.3.15",
 		"@angular/cdk": "20.2.14",
 		"@angular/common": "20.3.15",
-		"@angular/core": "20.3.15",
+		"@angular/core": "20.3.18",
 		"@angular/forms": "20.3.15",
 		"@angular/material": "20.2.14",
 		"@angular/platform-browser": "20.3.15",