Use react-shallow-renderer@16.14.1 in yarn.lock (facebook#20072)

This ensures that tests are run against the latest published version. This
merely updates the version in `yarn.lock` and not in `react-test-renderer`'s
`package.json` to avoid having to cut another release of `react-test-renderer`.

yarn.lock

@@ -11536,12 +11536,12 @@ react-native-web@0.0.0-26873b469:
     react-timer-mixin "^0.13.4"
 
 react-shallow-renderer@^16.13.1:
-  version "16.13.1"
-  resolved "https://registry.yarnpkg.com/react-shallow-renderer/-/react-shallow-renderer-16.13.1.tgz#4cfd6dc0f05a8d4d261ff7a80e9b88f15491a00a"
-  integrity sha512-hLmExm5/ZnjodLgm/4oxYw4i7fL6LLPhbO9mF/4tmaZUurtLrp2aSeDHZmRk0SVCHXPz0VaEbb3Dqi5J7odz7Q==
+  version "16.14.1"
+  resolved "https://registry.yarnpkg.com/react-shallow-renderer/-/react-shallow-renderer-16.14.1.tgz#bf0d02df8a519a558fd9b8215442efa5c840e124"
+  integrity sha512-rkIMcQi01/+kxiTE9D3fdS959U1g7gs+/rborw++42m1O9FAQiNI/UNRZExVUoAOprn4umcXf+pFRou8i4zuBg==
   dependencies:
     object-assign "^4.1.1"
-    react-is "^16.12.0"
+    react-is "^16.12.0 || ^17.0.0"
 
 react-timer-mixin@^0.13.4:
   version "0.13.4"