fix: packages/ble-peripheral/package.json & packages/ble-peripheral/yarn.lock to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-AJV-15274295

Author: snyk-bot

packages/ble-peripheral/package.json

@@ -17,6 +17,6 @@
   },
   "dependencies": {
     "i": "^0.3.6",
-    "npm": "^6.14.7"
+    "npm": "^7.0.0"
   }
 }