Bump dot-prop from 4.2.0 to 4.2.1

Bumps [dot-prop](https://github.com/sindresorhus/dot-prop) from 4.2.0 to 4.2.1.
- [Release notes](https://github.com/sindresorhus/dot-prop/releases)
- [Commits](sindresorhus/dot-prop@v4.2.0...v4.2.1)

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

yarn.lock

@@ -716,9 +716,9 @@ diff@^3.1.0:
   integrity sha1-gAwN0eCov7yVg1wgKtIg/jF+WhI=
 
 dot-prop@^4.1.0:
-  version "4.2.0"
-  resolved "https://registry.npm.taobao.org/dot-prop/download/dot-prop-4.2.0.tgz#1f19e0c2e1aa0e32797c49799f2837ac6af69c57"
-  integrity sha1-HxngwuGqDjJ5fEl5nyg3rGr2nFc=
+  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"
 
@@ -1278,7 +1278,7 @@ is-number@^3.0.0:
 
 is-obj@^1.0.0:
   version "1.0.1"
-  resolved "https://registry.npm.taobao.org/is-obj/download/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-1.0.1.tgz#3e4729ac1f5fde025cd7d83a896dab9f4f67db0f"
   integrity sha1-PkcprB9f3gJc19g6iW2rn09n2w8=
 
 is-path-inside@^1.0.0: