Pin browserslist to version 4.24.4

Author: depfu[bot]

package.json

@@ -43,7 +43,7 @@
     "assetgraph": "7.12.0",
     "assetgraph-hashfiles": "^1.0.1",
     "assetgraph-sprite": "^3.2.0",
-    "browserslist": "^4.4.2",
+    "browserslist": "4.24.4",
     "chalk": "^4.0.0",
     "esanimate": "^2.0.0",
     "estraverse": "^5.0.0",