Bump fake-indexeddb from 3.1.7 to 3.1.8

Bumps [fake-indexeddb](https://github.com/dumbmatter/fakeIndexedDB) from 3.1.7 to 3.1.8.
- [Release notes](https://github.com/dumbmatter/fakeIndexedDB/releases)
- [Changelog](https://github.com/dumbmatter/fakeIndexedDB/blob/master/CHANGELOG.md)
- [Commits](dumbmatter/fakeIndexedDB@v3.1.7...v3.1.8)

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

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

package.json

@@ -178,7 +178,7 @@
     "eslint": "^8.3.0",
     "eslint-config-prettier": "^8.3.0",
     "estraverse-fb": "^1.3.2",
-    "fake-indexeddb": "3.1.7",
+    "fake-indexeddb": "3.1.8",
     "form-data": "^4.0.0",
     "gh-pages": "^4.0.0",
     "http-server": "^14.0.0",