build(deps-dev): bump prettier from 2.8.6 to 2.8.7 in /demos/moderator (#573)

Bumps [prettier](https://github.com/prettier/prettier) from 2.8.6 to 2.8.7.
- [Release notes](https://github.com/prettier/prettier/releases)
- [Changelog](https://github.com/prettier/prettier/blob/main/CHANGELOG.md)
- [Commits](prettier/prettier@2.8.6...2.8.7)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

demos/moderator/package.json

@@ -41,7 +41,7 @@
     "npm-run-all": "4.1.5",
     "parcel-bundler": "1.12.5",
     "postcss-modules": "3.2.2",
-    "prettier": "2.8.6",
+    "prettier": "2.8.7",
     "prettier-eslint": "15.0.1"
   },
   "snyk": true

demos/moderator/yarn.lock

@@ -9859,10 +9859,10 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-[email protected].6, prettier@^2.5.1:
-  version "2.8.6"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.6.tgz#5c174b29befd507f14b83e3c19f83fdc0e974b71"
-  integrity sha512-mtuzdiBbHwPEgl7NxWlqOkithPyp4VN93V7VeHVWBF+ad3I5avc0RVDT4oImXQy9H/AqxA2NSQH8pSxHW6FYbQ==
+[email protected].7, prettier@^2.5.1:
+  version "2.8.7"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.7.tgz#bb79fc8729308549d28fe3a98fce73d2c0656450"
+  integrity sha512-yPngTo3aXUUmyuTjeTUT75txrf+aMh9FiD7q9ZE/i6r0bPb22g4FsE6Y338PQX1bmfy08i9QQCB7/rcUAVntfw==
 
 pretty-format@^23.0.1:
   version "23.6.0"