chore(deps): update nest monorepo to v7.6.9

Author: renovate-bot

package-lock.json

@@ -21,10 +21,10 @@
   "devDependencies": {
     "@commitlint/cli": "11.0.0",
     "@commitlint/config-angular": "11.0.0",
-    "@nestjs/common": "7.6.8",
-    "@nestjs/core": "7.6.8",
-    "@nestjs/platform-express": "7.6.8",
-    "@nestjs/testing": "7.6.8",
+    "@nestjs/common": "7.6.9",
+    "@nestjs/core": "7.6.9",
+    "@nestjs/platform-express": "7.6.9",
+    "@nestjs/testing": "7.6.9",
     "@types/jest": "26.0.20",
     "@types/node": "7.10.8",
     "@types/supertest": "2.0.10",