chore(deps): update dependency happy-dom to v15

Author: renovate[bot]

bun.lockb

@@ -37,7 +37,7 @@
     "ekscss": "0.0.20",
     "eslint": "9.13.0",
     "eslint-plugin-unicorn": "56.0.0",
-    "happy-dom": "14.12.3",
+    "happy-dom": "15.10.1",
     "lightningcss": "1.27.0",
     "stylelint": "16.10.0",
     "stylelint-config-standard": "36.0.1",