fix: correct invalid react version constraint (#555)

Author: dsherret

package.json

@@ -109,7 +109,7 @@
   },
   "peerDependencies": {
     "@stripe/stripe-js": "^1.44.1 || ^2.0.0 || ^3.0.0 || ^4.0.0 || ^5.0.0",
-    "react": ">=16.8.0 && <=^19.0.0",
-    "react-dom": ">=16.8.0 && <=^19.0.0"
+    "react": ">=16.8.0 <20.0.0",
+    "react-dom": ">=16.8.0 <20.0.0"
   }
 }