Bump axios from 0.18.1 to 0.21.1

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](axios/axios@v0.18.1...v0.21.1)

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

Author: dependabot[bot]

package-lock.json

@@ -5,7 +5,7 @@
   "author": "Houston Inc. Consulting Oy",
   "dependencies": {
     "anchorate": "^1.2.3",
-    "axios": "^0.18.0",
+    "axios": "^0.21.1",
     "classnames": "^2.2.6",
     "gatsby": "^2.0.53",
     "gatsby-image": "^2.0.20",