build(deps): bump http-proxy-middleware in /microsite

Bumps [http-proxy-middleware](https://github.com/chimurai/http-proxy-middleware) from 2.0.6 to 2.0.7.
- [Release notes](https://github.com/chimurai/http-proxy-middleware/releases)
- [Changelog](https://github.com/chimurai/http-proxy-middleware/blob/v2.0.7/CHANGELOG.md)
- [Commits](https://github.com/chimurai/http-proxy-middleware/compare/v2.0.6...v2.0.7)

---
updated-dependencies:
- dependency-name: http-proxy-middleware
  dependency-type: indirect
...

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

microsite/yarn.lock

@@ -6776,8 +6776,8 @@ __metadata:
   linkType: hard
 
 "http-proxy-middleware@npm:^2.0.3":
-  version: 2.0.6
-  resolution: "http-proxy-middleware@npm:2.0.6"
+  version: 2.0.7
+  resolution: "http-proxy-middleware@npm:2.0.7"
   dependencies:
     "@types/http-proxy": ^1.17.8
     http-proxy: ^1.18.1
@@ -6789,7 +6789,7 @@ __metadata:
   peerDependenciesMeta:
     "@types/express":
       optional: true
-  checksum: 2ee85bc878afa6cbf34491e972ece0f5be0a3e5c98a60850cf40d2a9a5356e1fc57aab6cff33c1fc37691b0121c3a42602d2b1956c52577e87a5b77b62ae1c3a
+  checksum: 18caa21145917aa1054740353916e8f03f5a3a93bede9106f1f44d84f7b174df17af1c72bf5fade5cc440c2058ee813f47cbb2bdd6ae6874af1cf33e0ac575f3
   languageName: node
   linkType: hard