Bump is-my-json-valid from 2.15.0 to 2.20.5 in /example (#202)

Bumps [is-my-json-valid](https://github.com/mafintosh/is-my-json-valid) from 2.15.0 to 2.20.5.
- [Release notes](https://github.com/mafintosh/is-my-json-valid/releases)
- [Commits](mafintosh/is-my-json-valid@v2.15.0...v2.20.5)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

example/yarn.lock

@@ -1487,8 +1487,10 @@ gauge@~1.2.5:
     lodash.padstart "^4.1.0"
 
 generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
+  dependencies:
+    is-property "^1.0.2"
 
 generate-object-property@^1.1.0:
   version "1.2.0"
@@ -1802,12 +1804,17 @@ is-glob@^2.0.0, is-glob@^2.0.1:
   dependencies:
     is-extglob "^1.0.0"
 
+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 "2.15.0"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.15.0.tgz#936edda3ca3c211fd98f3b2d3e08da43f7b2915b"
+  version "2.20.5"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.20.5.tgz#5eca6a8232a687f68869b7361be1612e7512e5df"
   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"
 
@@ -1825,7 +1832,7 @@ is-primitive@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-primitive/-/is-primitive-2.0.0.tgz#207bab91638499c07b2adf240a41a87210034575"
 
-is-property@^1.0.0:
+is-property@^1.0.0, is-property@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
 
@@ -2230,8 +2237,8 @@ jsonify@~0.0.0:
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
 jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.1.0.tgz#501fb89986a2389765ba09e6053299ceb4f2c2cc"
 
 jsprim@^1.2.2:
   version "1.3.1"
@@ -3772,8 +3779,8 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/xmldom/-/xmldom-0.1.27.tgz#d501f97b3bdb403af8ef9ecc20573187aadac0e9"
 
 "xtend@>=4.0.0 <4.1.0-0", xtend@^4.0.0, xtend@~4.0.1:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"
 
 y18n@^3.2.1:
   version "3.2.1"