chore(Worklets): compatibility docs (#8971)

## Summary

Worklets 0.7.4 works with RN 0.84.

## Test plan

Author: tjzel

packages/react-native-worklets/compatibility.json

@@ -6,7 +6,7 @@
     "react-native": ["0.79", "0.80", "0.81", "0.82", "0.83", "0.84"]
   },
   "0.7.x": {
-    "react-native": ["0.79", "0.80", "0.81", "0.82", "0.83"]
+    "react-native": ["0.79", "0.80", "0.81", "0.82", "0.83", "0.84"]
   },
   "0.6.x": {
     "react-native": ["0.78", "0.79", "0.80", "0.81", "0.82"]