fix: upgrade lru-cache from 7.13.2 to 7.18.3

Snyk has created this PR to upgrade lru-cache from 7.13.2 to 7.18.3.

See this package in npm:
lru-cache

See this project in Snyk:
https://app.snyk.io/org/q1bluequantumblockchainlabs.onmicrosoft.com/project/8672b918-9bc0-4674-92b1-963eacefcb27?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

api/package.json

@@ -55,7 +55,7 @@
     "koa-body": "^5.0.0",
     "koa-router": "^10.1.1",
     "koa-static": "^5.0.0",
-    "lru-cache": "^7.13.1",
+    "lru-cache": "^7.18.3",
     "luxon": "^2.3.0",
     "mysql": "^2.18.1",
     "mysql2": "^2.3.3",