Bump ajv from 6.10.0 to 6.12.6

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.10.0 to 6.12.6.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](https://github.com/ajv-validator/ajv/compare/v6.10.0...v6.12.6)

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

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

package-lock.json

@@ -1924,15 +1924,23 @@
             "dev": true
         },
         "ajv": {
-            "version": "6.10.0",
-            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
-            "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
+            "version": "6.12.6",
+            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+            "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
             "dev": true,
             "requires": {
-                "fast-deep-equal": "^2.0.1",
+                "fast-deep-equal": "^3.1.1",
                 "fast-json-stable-stringify": "^2.0.0",
                 "json-schema-traverse": "^0.4.1",
                 "uri-js": "^4.2.2"
+            },
+            "dependencies": {
+                "fast-deep-equal": {
+                    "version": "3.1.3",
+                    "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+                    "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
+                    "dev": true
+                }
             }
         },
         "ajv-errors": {
@@ -4338,12 +4346,6 @@
             "integrity": "sha1-lpGEQOMEGnpBT4xS48V06zw+HgU=",
             "dev": true
         },
-        "fast-deep-equal": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-            "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
-            "dev": true
-        },
         "fast-json-stable-stringify": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz",