chore(deps): update dependency @html-eslint/eslint-plugin to ^0.64.0

Author: renovate[bot]

frontend/package.json

@@ -62,7 +62,7 @@
     "@angular/compiler-cli": "^21.0.4",
     "@cspell/dict-de-ch": "^1.3.2",
     "@cspell/eslint-plugin": "^10.0.0",
-    "@html-eslint/eslint-plugin": "^0.63.0",
+    "@html-eslint/eslint-plugin": "^0.64.0",
     "@stylistic/eslint-plugin": "^5.2.3",
     "@types/jasmine": "~6.0.0",
     "@types/jest": "^30.0.0",