Bump panoptes-client from 5.5.7 to 5.5.8

Bumps [panoptes-client](https://github.com/zooniverse/panoptes-javascript-client) from 5.5.7 to 5.5.8.
- [Release notes](https://github.com/zooniverse/panoptes-javascript-client/releases)
- [Changelog](https://github.com/zooniverse/panoptes-javascript-client/blob/main/CHANGELOG.md)
- [Commits](zooniverse/panoptes-javascript-client@v5.5.7...v5.5.8)

---
updated-dependencies:
- dependency-name: panoptes-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -6,7 +6,7 @@
     "grommet": "^1.13.0",
     "history": "^5.3.0",
     "markdownz": "^9.1.4",
-    "panoptes-client": "^5.5.7",
+    "panoptes-client": "^5.5.8",
     "prop-types": "^15.7.2",
     "react": "~16.14.0",
     "react-dom": "~16.14.0",