fix(deps): update dependency sirv to v1.0.18

Author: renovate-bot

package-lock.json

@@ -26,7 +26,7 @@
     "@polka/redirect": "1.0.0-next.15",
     "compression": "1.7.4",
     "polka": "next",
-    "sirv": "1.0.11"
+    "sirv": "1.0.18"
   },
   "devDependencies": {
     "@babel/core": "7.15.8",