Bump har-validator from 5.1.3 to 5.1.5 (#14580)

Bumps [har-validator](https://github.com/ahmadnassri/node-har-validator) from 5.1.3 to 5.1.5.
- [Release notes](https://github.com/ahmadnassri/node-har-validator/releases)
- [Changelog](https://github.com/ahmadnassri/node-har-validator/blob/master/.releaserc)
- [Commits](https://github.com/ahmadnassri/node-har-validator/compare/v5.1.3...v5.1.5)

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

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

yarn.lock

@@ -1811,10 +1811,10 @@ ajv@^4.7.0:
     co "^4.6.0"
     json-stable-stringify "^1.0.1"
 
-ajv@^6.1.0, ajv@^6.10.0, ajv@^6.10.2, ajv@^6.12.2, ajv@^6.5.5, ajv@^6.9.1:
-  version "6.12.3"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.3.tgz#18c5af38a111ddeb4f2697bd78d68abc1cabd706"
-  integrity sha512-4K0cK3L1hsqk9xIb2z9vs/XU+PGJZ9PNpJRDS9YLzmNdX6jmVPfamLvTJr0aDAusnHyCHO6MjzlkAsgtqp9teA==
+ajv@^6.1.0, ajv@^6.10.0, ajv@^6.10.2, ajv@^6.12.2, ajv@^6.12.3, ajv@^6.9.1:
+  version "6.12.4"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.12.4.tgz#0614facc4522127fa713445c6bfd3ebd376e2234"
+  integrity sha512-eienB2c9qVQs2KWexhkrdMLVDoIQCz5KSeLxwg9Lzk4DOfBtIK9PQwwufcsn1jjGuf9WZmqPMbGxOzfcuphJCQ==
   dependencies:
     fast-deep-equal "^3.1.1"
     fast-json-stable-stringify "^2.0.0"
@@ -5167,11 +5167,11 @@ har-schema@^2.0.0:
   integrity sha1-qUwiJOvKwEeCoNkDVSHyRzW37JI=
 
 har-validator@~5.1.3:
-  version "5.1.3"
-  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.3.tgz#1ef89ebd3e4996557675eed9893110dc350fa080"
-  integrity sha512-sNvOCzEQNr/qrvJgc3UG/kD4QtlHycrzwS+6mfTrrSq97BvaYcPZZI1ZSqGSPR73Cxn4LKTD4PttRwfU7jWq5g==
+  version "5.1.5"
+  resolved "https://registry.yarnpkg.com/har-validator/-/har-validator-5.1.5.tgz#1f0803b9f8cb20c0fa13822df1ecddb36bde1efd"
+  integrity sha512-nmT2T0lljbxdQZfspsno9hgrG3Uir6Ks5afism62poxqBM6sDnMEuPmzTq8XN0OEwqKLLdh1jQI3qyE66Nzb3w==
   dependencies:
-    ajv "^6.5.5"
+    ajv "^6.12.3"
     har-schema "^2.0.0"
 
 has-ansi@^2.0.0: