Bump axios from 0.21.1 to 0.21.4 in /doc-site

Bumps [axios](https://github.com/axios/axios) from 0.21.1 to 0.21.4.
- [Release notes](https://github.com/axios/axios/releases)
- [Changelog](https://github.com/axios/axios/blob/master/CHANGELOG.md)
- [Commits](axios/axios@v0.21.1...v0.21.4)

---
updated-dependencies:
- dependency-name: axios
  dependency-type: indirect
...

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

doc-site/yarn.lock

@@ -2245,11 +2245,11 @@ autoprefixer@^10.2.0, autoprefixer@^10.2.5:
     postcss-value-parser "^4.1.0"
 
 axios@^0.21.1:
-  version "0.21.1"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.1.tgz#22563481962f4d6bde9a76d516ef0e5d3c09b2b8"
-  integrity sha512-dKQiRHxGD9PPRIUNIWvZhPTPpl1rf/OxTYKsqKUDjBwYylTvV7SjSHJb9ratfyzM6wCdLCOYLzs73qpg5c4iGA==
+  version "0.21.4"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
+  integrity sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==
   dependencies:
-    follow-redirects "^1.10.0"
+    follow-redirects "^1.14.0"
 
 babel-loader@^8.2.2:
   version "8.2.2"
@@ -4057,10 +4057,10 @@ flux@^4.0.1:
     fbemitter "^3.0.0"
     fbjs "^3.0.0"
 
-follow-redirects@^1.0.0, follow-redirects@^1.10.0:
-  version "1.14.1"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.1.tgz#d9114ded0a1cfdd334e164e6662ad02bfd91ff43"
-  integrity sha512-HWqDgT7ZEkqRzBvc2s64vSZ/hfOceEol3ac/7tKwzuvEyWx3/4UegXh5oBOIotkGsObyk3xznnSRVADBgWSQVg==
+follow-redirects@^1.0.0, follow-redirects@^1.14.0:
+  version "1.14.4"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.4.tgz#838fdf48a8bbdd79e52ee51fb1c94e3ed98b9379"
+  integrity sha512-zwGkiSXC1MUJG/qmeIFH2HBJx9u0V46QGUe3YR1fXG8bXQxq7fLj0RjLZQ5nubr9qNJUZrH+xUcwXEoXNpfS+g==
 
 for-in@^1.0.2:
   version "1.0.2"