Update dependency classnames to v2.5.1

Author: renovate[bot]

package-lock.json

@@ -226,7 +226,7 @@
     "@types/lazy-brush": "^1.0.0",
     "adm-zip": "^0.5.10",
     "bplist-parser": "^0.3.2",
-    "classnames": "2.2.6",
+    "classnames": "2.5.1",
     "cross-spawn": "^7.0.5",
     "electron-dl": "3.5.0",
     "electron-fetch": "1.9.1",