chore(deps): bump ajv from 6.12.5 to 6.14.0 in /samples/sample-app

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.12.5 to 6.14.0.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](ajv-validator/ajv@v6.12.5...v6.14.0)

---
updated-dependencies:
- dependency-name: ajv
  dependency-version: 6.14.0
  dependency-type: indirect
...

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

Author: dependabot[bot]

samples/sample-app/yarn.lock

@@ -34,9 +34,9 @@ acorn@^7.1.1:
   integrity sha512-nQyp0o1/mNdbTO1PO6kHkwSrmgZ0MT/jCCpNiwbUjGoRN4dlBhqJtoQuCnEOKzgTVwg0ZWiCoQy6SxMebQVh8A==
 
 ajv@^6.12.3:
-  version "6.12.5"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.5.tgz#19b0e8bae8f476e5ba666300387775fb1a00a4da"
-  integrity sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==
+  version "6.14.0"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.14.0.tgz#fd067713e228210636ebb08c60bd3765d6dbe73a"
+  integrity sha512-IWrosm/yrn43eiKqkfkHis7QioDleaXQHdDVPKg0FSwwd/DuvyX79TZnFOnYpB7dcsFAMmtFztZuXPDvSePkFw==
   dependencies:
     fast-deep-equal "^3.1.1"
     fast-json-stable-stringify "^2.0.0"
@@ -994,4 +994,4 @@ with@^7.0.0:
     "@babel/parser" "^7.9.6"
     "@babel/types" "^7.9.6"
     assert-never "^1.2.1"
-    babel-walk "3.0.0-canary-5"
+    babel-walk "3.0.0-canary-5"