Bump ajv from 6.10.0 to 6.12.6 in /server/frontend

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>

server/frontend/package-lock.json

@@ -229,14 +229,21 @@
       }
     },
     "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==",
       "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=="
+        }
       }
     },
     "ajv-errors": {
@@ -845,17 +852,6 @@
         "webpack-sources": "^1.4.3"
       },
       "dependencies": {
-        "ajv": {
-          "version": "6.12.5",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.5.tgz",
-          "integrity": "sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==",
-          "requires": {
-            "fast-deep-equal": "^3.1.1",
-            "fast-json-stable-stringify": "^2.0.0",
-            "json-schema-traverse": "^0.4.1",
-            "uri-js": "^4.2.2"
-          }
-        },
         "ajv-keywords": {
           "version": "3.5.2",
           "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
@@ -996,17 +992,6 @@
         "semver": "^6.3.0"
       },
       "dependencies": {
-        "ajv": {
-          "version": "6.12.5",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.5.tgz",
-          "integrity": "sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==",
-          "requires": {
-            "fast-deep-equal": "^3.1.1",
-            "fast-json-stable-stringify": "^2.0.0",
-            "json-schema-traverse": "^0.4.1",
-            "uri-js": "^4.2.2"
-          }
-        },
         "ajv-keywords": {
           "version": "3.5.2",
           "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
@@ -1377,11 +1362,6 @@
         }
       }
     },
-    "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="
-    },
     "fast-glob": {
       "version": "3.2.4",
       "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.2.4.tgz",
@@ -3918,17 +3898,6 @@
         "webpack-sources": "^1.4.1"
       },
       "dependencies": {
-        "ajv": {
-          "version": "6.12.5",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.5.tgz",
-          "integrity": "sha512-lRF8RORchjpKG50/WFf8xmg7sgCLFiYNNnqdKflk63whMQcWR5ngGjiSXkL9bjxy6B2npOK2HSMN49jEBMSkag==",
-          "requires": {
-            "fast-deep-equal": "^3.1.1",
-            "fast-json-stable-stringify": "^2.0.0",
-            "json-schema-traverse": "^0.4.1",
-            "uri-js": "^4.2.2"
-          }
-        },
         "ajv-keywords": {
           "version": "3.5.2",
           "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",