Update dependency browser-sync to v3.0.4 (#94)

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

Author: renovate[bot]

package-lock.json

@@ -26,7 +26,7 @@
     "prepare": "run-p build document"
   },
   "devDependencies": {
-    "browser-sync": "3.0.3",
+    "browser-sync": "3.0.4",
     "cpy-cli": "5.0.0",
     "del-cli": "6.0.0",
     "minify": "13.0.0",