Revert "Bump jsdom to v27.1.0 (mui#20100)"

This reverts commit 8cb6295.

Author: bernardobelchior

package.json

@@ -119,7 +119,7 @@
     "execa": "^9.6.0",
     "glob-gitignore": "^1.0.15",
     "globby": "^15.0.0",
-    "jsdom": "27.1.0",
+    "jsdom": "26.1.0",
     "lerna": "^9.0.0",
     "magic-string": "^0.30.21",
     "markdownlint-cli2": "^0.18.1",

test/performance-charts/package.json

@@ -20,7 +20,7 @@
     "@vitejs/plugin-react-swc": "catalog:",
     "@vitest/browser-playwright": "catalog:",
     "@vitest/ui": "catalog:",
-    "jsdom": "^27.1.0",
+    "jsdom": "^26.1.0",
     "react": "catalog:",
     "react-dom": "catalog:",
     "vitest": "catalog:"