fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-INFLIGHT-6095116

Author: snyk-bot

package-lock.json

@@ -39,7 +39,7 @@
   "license": "Apache2.0",
   "dependencies": {
     "@hashgraph/proto": "^2.15.0-beta.3",
-    "@hashgraph/sdk": "^2.50.0-beta.3",
+    "@hashgraph/sdk": "^2.50.0",
     "@kubernetes/client-node": "^0.21.0",
     "@listr2/prompt-adapter-enquirer": "^2.0.11",
     "@peculiar/x509": "^1.12.1",