fix: upgrade pnpm from 8.15.8 to 8.15.9

Snyk has created this PR to upgrade pnpm from 8.15.8 to 8.15.9.

See this package in npm:
pnpm

See this project in Snyk:
https://app.snyk.io/org/json-rpc-relay/project/676a2a7f-2402-4e56-a88e-c689198d1f31?utm_source=github&utm_medium=referral&page=upgrade-pr

Signed-off-by: ebadiere <ebadiere@gmail.com>

packages/ws-server/package.json

@@ -20,7 +20,7 @@
     "mocha": "^10.1.0",
     "pino": "^7.11.0",
     "pino-pretty": "^7.6.1",
-    "pnpm": "8.15.8"
+    "pnpm": "8.15.9"
   },
   "devDependencies": {
     "@hashgraph/hedera-local": "^2.29.0",