Bump axios from 0.18.1 to 0.21.1 in /backend/test

Bumps [axios](https://github.com/axios/axios) from 0.18.1 to 0.21.1.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/v0.21.1/CHANGELOG.md)
- [Commits](https://github.com/axios/axios/compare/v0.18.1...v0.21.1)

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

backend/test/package-lock.json

@@ -10,12 +10,11 @@
       "integrity": "sha1-2sh4dxPJlmhJ/IGAd36+nB3fO4Y="
     },
     "axios": {
-      "version": "0.18.1",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.1.tgz",
-      "integrity": "sha512-0BfJq4NSfQXd+SkFdrvFbG7addhYSBA2mQwISr46pD6E5iqkWg02RAs8vyTT/j0RTnoYmeXauBuSv1qKwR179g==",
+      "version": "0.21.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.21.1.tgz",
+      "integrity": "sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==",
       "requires": {
-        "follow-redirects": "1.5.10",
-        "is-buffer": "^2.0.2"
+        "follow-redirects": "^1.10.0"
       }
     },
     "cartesian-product": {
@@ -23,31 +22,10 @@
       "resolved": "https://registry.npmjs.org/cartesian-product/-/cartesian-product-2.1.2.tgz",
       "integrity": "sha1-yahGLFSrGaDF/TIZKSLiOatMpP0="
     },
-    "debug": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
-      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
-      "requires": {
-        "ms": "2.0.0"
-      }
-    },
     "follow-redirects": {
-      "version": "1.5.10",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
-      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
-      "requires": {
-        "debug": "=3.1.0"
-      }
-    },
-    "is-buffer": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.4.tgz",
-      "integrity": "sha512-Kq1rokWXOPXWuaMAqZiJW4XxsmD9zGx9q4aePabbn3qCRGedtH7Cm+zV8WETitMfu1wdh+Rvd6w5egwSngUX2A=="
-    },
-    "ms": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+      "version": "1.13.1",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.13.1.tgz",
+      "integrity": "sha512-SSG5xmZh1mkPGyKzjZP8zLjltIfpW32Y5QpdNJyjcfGxK3qo3NDDkZOZSFiGn1A6SclQxY9GzEwAHQ3dmYRWpg=="
     },
     "node-rsa": {
       "version": "0.4.2",

backend/test/package.json

@@ -3,7 +3,7 @@
   "version": "1.0.0",
   "description": "Dependencies for pdnsmanager test",
   "dependencies": {
-    "axios": "^0.18.1",
+    "axios": "^0.21.1",
     "cartesian-product": "^2.1.2",
     "node-rsa": "^0.4.2"
   }