📦 build(stt-sdk-core): add protobufjs dependency

- add protobufjs@^7.2.5 to dependencies
- add protobufjs@^7.2.5 to peerDependencies

packages/stt-sdk-core/package.json

@@ -27,10 +27,12 @@
     "typecheck": "tsc --noEmit"
   },
   "dependencies": {
+    "protobufjs": "^7.2.5",
     "agora-rtc-sdk-ng": "4.20.0",
     "agora-rtm": "^2.1.9"
   },
   "peerDependencies": {
+    "protobufjs": "^7.2.5",
     "agora-rtc-sdk-ng": "4.20.0",
     "agora-rtm": "^2.1.9"
   },