update: update dependency ajv to v6.12.2 (#332)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

package.json

@@ -55,7 +55,7 @@
     "@typescript-eslint/eslint-plugin": "2.28.0",
     "@typescript-eslint/eslint-plugin-tslint": "2.28.0",
     "@typescript-eslint/parser": "2.28.0",
-    "ajv": "6.12.1",
+    "ajv": "6.12.2",
     "bunyan": "1.8.12",
     "chai": "4.2.0",
     "chai-as-promised": "7.1.1",

yarn.lock

@@ -525,15 +525,14 @@ aggregate-error@^3.0.0:
     clean-stack "^2.0.0"
     indent-string "^4.0.0"
 
-ajv@6.12.1:
-  version "6.12.1"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/ajv/-/ajv-6.12.1.tgz#cce4d7dfcd62d3c57b1cd772e688eff5f5cd3839"
-  integrity sha512-AUh2mDlJDAnzSRaKkMHopTD1GKwC1ApUq8oCzdjAOM5tavncgqWU+JoRu5Y3iYY0Q/euiU+1LWp0/O/QY8CcHw==
+ajv@6.12.2:
+  version "6.12.2"
+  resolved "https://artifacts.apextoaster.com/repository/group-npm/ajv/-/ajv-6.12.2.tgz#c629c5eced17baf314437918d2da88c99d5958cd"
+  integrity sha512-k+V+hzjm5q/Mr8ef/1Y9goCmlsK4I6Sm74teeyGvFk1XrOsbsKLjEdrvny42CZ+a8sXbk8KWpY/bDwS+FLL2UQ==
   dependencies:
     fast-deep-equal "^3.1.1"
     fast-json-stable-stringify "^2.0.0"
     json-schema-traverse "^0.4.1"
-    opencollective-postinstall "^2.0.2"
     uri-js "^4.2.2"
 
 ajv@^6.10.0, ajv@^6.10.2:
@@ -2866,11 +2865,6 @@ onetime@^5.1.0:
   dependencies:
     mimic-fn "^2.1.0"
 
-opencollective-postinstall@^2.0.2:
-  version "2.0.2"
-  resolved "https://artifacts.apextoaster.com/repository/group-npm/opencollective-postinstall/-/opencollective-postinstall-2.0.2.tgz#5657f1bede69b6e33a45939b061eb53d3c6c3a89"
-  integrity sha512-pVOEP16TrAO2/fjej1IdOyupJY8KDUM1CvsaScRbw6oddvpQoOfGk4ywha0HKKVAD6RkW4x6Q+tNBwhf3Bgpuw==
-
 optimist@^0.6.1:
   version "0.6.1"
   resolved "https://artifacts.apextoaster.com/repository/group-npm/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"