build(deps-dev): bump prettier from 2.5.1 to 2.6.0 in /microsite

Bumps [prettier](https://github.com/prettier/prettier) from 2.5.1 to 2.6.0.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](https://github.com/prettier/prettier/compare/2.5.1...2.6.0)

---
updated-dependencies:
- dependency-name: prettier
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

microsite/package.json

@@ -19,7 +19,7 @@
     "@spotify/prettier-config": "^12.0.0",
     "docusaurus": "^2.0.0-alpha.70",
     "js-yaml": "^4.1.0",
-    "prettier": "^2.5.1",
+    "prettier": "^2.6.0",
     "yarn-lock-check": "^1.0.5"
   },
   "prettier": "@spotify/prettier-config"

microsite/yarn.lock

@@ -5209,10 +5209,10 @@ prepend-http@^2.0.0:
   resolved "https://registry.npmjs.org/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
-prettier@^2.5.1:
-  version "2.5.1"
-  resolved "https://registry.npmjs.org/prettier/-/prettier-2.5.1.tgz#fff75fa9d519c54cf0fce328c1017d94546bc56a"
-  integrity sha512-vBZcPRUR5MZJwoyi3ZoyQlc1rXeEck8KgeC9AwwOn+exuxLxq5toTRDTSaVrXHxelDMHy9zlicw8u66yxoSUFg==
+prettier@^2.6.0:
+  version "2.6.0"
+  resolved "https://registry.npmjs.org/prettier/-/prettier-2.6.0.tgz#12f8f504c4d8ddb76475f441337542fa799207d4"
+  integrity sha512-m2FgJibYrBGGgQXNzfd0PuDGShJgRavjUoRCw1mZERIWVSXF0iLzLm+aOqTAbLnC3n6JzUhAA8uZnFVghHJ86A==
 
 prismjs@^1.22.0:
   version "1.27.0"