[Security] Bump is-my-json-valid from 2.17.1 to 2.19.0 (#138)

Bumps [is-my-json-valid](https://github.com/mafintosh/is-my-json-valid) from 2.17.1 to 2.19.0. **This update includes security fixes.**
- [Release notes](https://github.com/mafintosh/is-my-json-valid/releases)
- [Commits](https://github.com/mafintosh/is-my-json-valid/compare/v2.17.1...v2.19.0)

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

yarn.lock

@@ -5005,12 +5005,17 @@ is-jpg@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/is-jpg/-/is-jpg-1.0.0.tgz#2959c17e73430db38264da75b90dd54f2d86da1c"
 
+is-my-ip-valid@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.0.tgz#7b351b8e8edd4d3995d4d066680e664d94696824"
+
 is-my-json-valid@^2.12.4:
-  version "2.17.1"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.17.1.tgz#3da98914a70a22f0a8563ef1511a246c6fc55471"
+  version "2.19.0"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.19.0.tgz#8fd6e40363cd06b963fa877d444bfb5eddc62175"
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
+    is-my-ip-valid "^1.0.0"
     jsonpointer "^4.0.0"
     xtend "^4.0.0"