fix: upgrade tslib from 2.6.3 to 2.7.0

Snyk has created this PR to upgrade tslib from 2.6.3 to 2.7.0.

See this package in npm:
tslib

See this project in Snyk:
https://app.snyk.io/org/minottic/project/15fa623e-9ad6-4182-ba0a-03235f8571b1?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -61,7 +61,7 @@
     "@loopback/rest-explorer": "^6.1.5",
     "@loopback/service-proxy": "^6.1.5",
     "jsdom": "^19.0.0",
-    "tslib": "^2.6.3"
+    "tslib": "^2.7.0"
   },
   "devDependencies": {
     "@loopback/build": "^10.1.4",