Merge pull request #756 from jupyter-widgets/dependabot/npm_and_yarn/js/dot-prop-4.2.1

Bump dot-prop from 4.2.0 to 4.2.1 in /js

Author: davidbrochart

js/package-lock.json

@@ -1697,9 +1697,9 @@ domain-browser@^1.1.1:
   integrity sha512-jnjyiM6eRyZl2H+W8Q/zLMA481hzi0eszAaBUzIVnmYVDBbnLxVNnfu1HgEBvCbL+71FrxMl3E6lpKH7Ge3OXA==
 
 dot-prop@^4.1.0:
-  version "4.2.0"
-  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-4.2.0.tgz#1f19e0c2e1aa0e32797c49799f2837ac6af69c57"
-  integrity sha512-tUMXrxlExSW6U2EXiiKGSBVdYgtV8qlHL+C10TsW4PURY/ic+eaysnSkwB4kA/mBlCyy/IKDJ+Lc3wbWeaXtuQ==
+  version "4.2.1"
+  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-4.2.1.tgz#45884194a71fc2cda71cbb4bceb3a4dd2f433ba4"
+  integrity sha512-l0p4+mIuJIua0mhxGoh4a+iNL9bmeK5DvnSVQa6T0OhrVmaEa1XScX5Etc673FePCJOArq/4Pa2cLGODUWTPOQ==
   dependencies:
     is-obj "^1.0.0"