Update dependency parcel to v2.15.0 (#887)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

src/2020/Day-11-Seating-System/package.json

@@ -9,7 +9,7 @@
   },
   "license": "MIT",
   "devDependencies": {
-    "parcel": "2.14.4",
+    "parcel": "2.15.0",
     "typescript": "4.7.4"
   }
 }