Bump @hypothesis/frontend-shared from 6.8.2 to 6.9.0

Bumps [@hypothesis/frontend-shared](https://github.com/hypothesis/frontend-shared) from 6.8.2 to 6.9.0.
- [Release notes](https://github.com/hypothesis/frontend-shared/releases)
- [Changelog](https://github.com/hypothesis/frontend-shared/blob/main/docs/releases.md)
- [Commits](https://github.com/hypothesis/frontend-shared/compare/v6.8.2...v6.9.0)

---
updated-dependencies:
- dependency-name: "@hypothesis/frontend-shared"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...
Signed-off-by: dependabot[bot] <support@github.com>

yarn.lock

@@ -1936,14 +1936,14 @@ __metadata:
   linkType: hard
 
 "@hypothesis/frontend-shared@npm:^6.8.1":
-  version: 6.8.2
-  resolution: "@hypothesis/frontend-shared@npm:6.8.2"
+  version: 6.9.0
+  resolution: "@hypothesis/frontend-shared@npm:6.9.0"
   dependencies:
     highlight.js: ^11.6.0
     wouter-preact: ^2.10.0-alpha.1
   peerDependencies:
     preact: ^10.4.0
-  checksum: 1dc5822cb5c14ee2d55fbd6feadbf9ba5cd0e717ed1049e88960b134e01abbd3e741769bf1086e6fe6ee79ae933df973b98155b15257a1d27a3f16993586df47
+  checksum: e8fe4a40a7502476f7eb16957803158084e140b8dc95b0ff54aae25cf02a2c780953e42c776715f7eddf8bc5e1119223b5aeaa070ae65c194ba38b06dfff650a
   languageName: node
   linkType: hard