chore: force testing-library to v12.1.4

because 12.1.5 only supports react < 18, and we install both 17 and 18

Author: TkDodo

package-lock.json

@@ -68,7 +68,7 @@
     "@testing-library/jest-dom": "^5.16.4",
     "@testing-library/react": "^13.0.0",
     "@testing-library/react-hooks": "^7.0.2",
-    "@testing-library/react-17": "npm:@testing-library/react@^12.1.4",
+    "@testing-library/react-17": "npm:@testing-library/[email protected]",
     "@tsconfig/svelte": "^3.0.0",
     "@types/jest": "^26.0.4",
     "@types/luxon": "^2.3.1",