fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-DEBUG-3227433

package-lock.json

@@ -282,7 +282,7 @@
     "axios": {
       "version": "0.16.1",
       "resolved": "https://registry.npmjs.org/axios/-/axios-0.16.1.tgz",
-      "integrity": "sha1-wLbSZgCEI4S49QnlcRHw0t+CI8o=",
+      "integrity": "sha512-dm8XNlNAD6yRqbxfzK3OBtNs/953XqC6sns+c2jtk8Q1u24ZYPVfQUwtAFJ/PBBSDmafcCg5C3DCJjReOFFRZQ==",
       "requires": {
         "follow-redirects": "^1.2.3"
       }
@@ -2143,9 +2143,9 @@
       "dev": true
     },
     "follow-redirects": {
-      "version": "1.14.8",
+      "version": "1.15.2",
-      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.14.8.tgz",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.2.tgz",
-      "integrity": "sha512-1x0S9UVJHsQprFcEC/qnNzBLcIxsjAV905f/UkQxbclCsoTWlacCNOpQa/anodLl2uaEKFhfWOvM2Qg77+15zA=="
+      "integrity": "sha512-VQLG33o04KaQ8uYi2tVNbdrWp1QWxNNea+nmIB4EVM28v0hmP17z7aG1+wAkNzVq4KeXTq3221ye5qTJP91JwA=="
     },
     "for-in": {
       "version": "1.0.2",