build(deps): bump webpack from 5.75.0 to 5.76.2 in /microsite

Bumps [webpack](https://github.com/webpack/webpack) from 5.75.0 to 5.76.2.
- [Release notes](https://github.com/webpack/webpack/releases)
- [Commits](https://github.com/webpack/webpack/compare/v5.75.0...v5.76.2)

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

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

microsite/yarn.lock

@@ -10889,8 +10889,8 @@ __metadata:
   linkType: hard
 
 "webpack@npm:^5.73.0":
-  version: 5.75.0
-  resolution: "webpack@npm:5.75.0"
+  version: 5.76.2
+  resolution: "webpack@npm:5.76.2"
   dependencies:
     "@types/eslint-scope": ^3.7.3
     "@types/estree": ^0.0.51
@@ -10921,7 +10921,7 @@ __metadata:
       optional: true
   bin:
     webpack: bin/webpack.js
-  checksum: 2bcc5f3c195f375944e8af2f00bf2feea39cb9fda5f763b0d1b00077f1c51783db25c94d3fae96a07dead9fa085e6ae7474417e5ab31719c9776ea5969ceb83a
+  checksum: 86db98299a175c371031449c26077e87b33acd8f45de7f7945ed4b9b37c8ca11bc5169af9c44743efccd4d55e08042a3aa3a3bc42aff831309a0821ffbcd395e
   languageName: node
   linkType: hard