build: update dependency @types/prop-types to v15.7.3

Author: renovate-bot

package.json

@@ -7,7 +7,7 @@
     "@types/fetch-mock": "7.3.1",
     "@types/jest": "24.0.18",
     "@types/node": "9.6.18",
-    "@types/prop-types": "15.7.2",
+    "@types/prop-types": "15.7.3",
     "@types/react": "16.4.7",
     "@types/react-test-renderer": "16.8.0",
     "@types/util-deprecate": "1.0.0",

yarn.lock

@@ -1355,10 +1355,10 @@
   version "9.6.18"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-9.6.18.tgz#092e13ef64c47e986802c9c45a61c1454813b31d"
 
-"@types/prop-types@15.7.2":
-  version "15.7.2"
-  resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.2.tgz#0e58ae66773d7fd7c372a493aff740878ec9ceaa"
-  integrity sha512-f8JzJNWVhKtc9dg/dyDNfliTKNOJSLa7Oht/ElZdF/UbMUmAH3rLmAk3ODNjw0mZajDEgatA03tRjB4+Dp/tzA==
+"@types/prop-types@15.7.3":
+  version "15.7.3"
+  resolved "https://registry.yarnpkg.com/@types/prop-types/-/prop-types-15.7.3.tgz#2ab0d5da2e5815f94b0b9d4b95d1e5f243ab2ca7"
+  integrity sha512-KfRL3PuHmqQLOG+2tGpRO26Ctg+Cq1E01D2DMriKEATHgWLfeNDmq9e29Q9WIky0dQ3NPkd1mzYH8Lm936Z9qw==
 
 "@types/react-test-renderer@16.8.0":
   version "16.8.0"