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

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-BL-608877
- https://snyk.io/vuln/SNYK-JS-QS-3153490
- https://snyk.io/vuln/SNYK-JS-SEMVER-3247795
- https://snyk.io/vuln/SNYK-JS-JSONSCHEMA-1920922

Author: snyk-bot

package-lock.json

@@ -53,9 +53,9 @@
     "metalsmith-stylus": "3.0.0",
     "metalsmith-yearly-pagination": "^2.0.1",
     "ncp": "2.0.0",
-    "node-version-data": "1.0.1",
+    "node-version-data": "1.1.0",
     "octonode": "^0.9.5",
-    "request": "^2.88.0",
+    "request": "^2.88.2",
     "require-dir": "1.2.0",
     "semver": "6.3.0",
     "st": "1.2.2",