[deps] Move event emitter to runtime dependency

Without this, it will fail to run with
Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'eventemitter3' imported from /opt/git/aptos-playground/node_modules/.pnpm/@aptos-labs+ts-sdk@1.5.0/node_modules/@aptos-labs/ts-sdk/dist/esm/chunk-27YNIEGN.mjs

CHANGELOG.md

@@ -4,6 +4,8 @@ All notable changes to the Aptos TypeScript SDK will be captured in this file. T
 
 # Unreleased
 
+- Move eventemitter3 to runtime dependency
+
 # 1.5.0 (2024-01-24)
 
 - Remove request URLs forward slash append

package.json

@@ -51,7 +51,8 @@
     "@scure/bip32": "^1.3.3",
     "@scure/bip39": "^1.2.1",
     "form-data": "^4.0.0",
-    "tweetnacl": "^1.0.3"
+    "tweetnacl": "^1.0.3",
+    "eventemitter3": "^5.0.1"
   },
   "devDependencies": {
     "@aptos-labs/aptos-cli": "^0.1.2",
@@ -66,7 +67,6 @@
     "@typescript-eslint/eslint-plugin": "^6.14.0",
     "@typescript-eslint/parser": "^6.14.0",
     "dotenv": "^16.3.1",
-    "eventemitter3": "^5.0.1",
     "eslint": "^8.55.0",
     "eslint-config-airbnb-base": "^15.0.0",
     "eslint-config-airbnb-typescript": "^17.1.0",