chore(deps): Bump @docusaurus/preset-classic from 2.1.0 to 2.2.0

Bumps [@docusaurus/preset-classic](https://github.com/facebook/docusaurus/tree/HEAD/packages/docusaurus-preset-classic) from 2.1.0 to 2.2.0.
- [Release notes](https://github.com/facebook/docusaurus/releases)
- [Changelog](https://github.com/facebook/docusaurus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/docusaurus/commits/v2.2.0/packages/docusaurus-preset-classic)

---
updated-dependencies:
- dependency-name: "@docusaurus/preset-classic"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -27,7 +27,7 @@
   "dependencies": {
     "@discordapp/twemoji": "discord/twemoji",
     "@docusaurus/core": "2.2.0",
-    "@docusaurus/preset-classic": "2.1.0",
+    "@docusaurus/preset-classic": "2.2.0",
     "@easyops-cn/docusaurus-search-local": "0.27.1",
     "@matteusan/sentro": "0.1.23",
     "@mdx-js/react": "1.6.22",