Bump axios from 0.18.0 to 0.18.1 in /example

Bumps [axios](https://github.com/axios/axios) from 0.18.0 to 0.18.1.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v0.18.1/CHANGELOG.md)
- [Commits](axios/axios@v0.18.0...v0.18.1)

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

example/yarn.lock

@@ -3,17 +3,17 @@
 
 
 axios@^0.18.0:
-  version "0.18.0"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.0.tgz#32d53e4851efdc0a11993b6cd000789d70c05102"
+  version "0.18.1"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.18.1.tgz#ff3f0de2e7b5d180e757ad98000f1081b87bcea3"
   dependencies:
-    follow-redirects "^1.3.0"
-    is-buffer "^1.1.5"
+    follow-redirects "1.5.10"
+    is-buffer "^2.0.2"
 
 [email protected]:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz#f8e71132f7ffe6e01a5c9697a4c6f3e48d5cc819"
 
-debug@^3.1.0:
+debug@=3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
   dependencies:
@@ -29,11 +29,11 @@ extend@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
 
-follow-redirects@^1.3.0:
-  version "1.5.0"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.0.tgz#234f49cf770b7f35b40e790f636ceba0c3a0ab77"
+follow-redirects@1.5.10:
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.5.10.tgz#7b7a9f9aea2fdff36786a94ff643ed07f4ff5e2a"
   dependencies:
-    debug "^3.1.0"
+    debug "=3.1.0"
 
 gcf-runtime-config@^0.0.6:
   version "0.0.6"
@@ -88,9 +88,9 @@ gtoken@^2.3.0:
     mime "^2.2.0"
     pify "^3.0.0"
 
-is-buffer@^1.1.5:
-  version "1.1.6"
-  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-1.1.6.tgz#efaa2ea9daa0d7ab2ea13a97b2b8ad51fefbe8be"
+is-buffer@^2.0.2:
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/is-buffer/-/is-buffer-2.0.4.tgz#3e572f23c8411a5cfd9557c849e3665e0b290623"
 
 jwa@^1.1.5:
   version "1.1.6"