chore(deps): bump mobx from 6.7.0 to 6.8.0 in /ui

Bumps [mobx](https://github.com/mobxjs/mobx) from 6.7.0 to 6.8.0.
- [Release notes](https://github.com/mobxjs/mobx/releases)
- [Commits](https://github.com/mobxjs/mobx/commits)

---
updated-dependencies:
- dependency-name: mobx
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

ui/package-lock.json

@@ -30,7 +30,7 @@
         "lodash.merge": "4.6.2",
         "lodash.throttle": "4.1.1",
         "lodash.uniqueid": "4.0.1",
-        "mobx": "6.7.0",
+        "mobx": "6.8.0",
         "mobx-react-lite": "3.4.0",
         "mobx-stored": "1.1.0",
         "promise-retry": "2.0.1",
@@ -26761,9 +26761,9 @@
       }
     },
     "node_modules/mobx": {
-      "version": "6.7.0",
-      "resolved": "https://registry.npmjs.org/mobx/-/mobx-6.7.0.tgz",
-      "integrity": "sha512-1kBLBdSNG2bA522HQdbsTvwAwYf9hq9FWxmlhX7wTsJUAI54907J+ozfGW+LoYUo06vjit748g6QH1AAGLNebw==",
+      "version": "6.8.0",
+      "resolved": "https://registry.npmjs.org/mobx/-/mobx-6.8.0.tgz",
+      "integrity": "sha512-+o/DrHa4zykFMSKfS8Z+CPSEg5LW9tSNGTuN8o6MF1GKxlfkSHSeJn5UtgxvPkGgaouplnrLXCF+duAsmm6FHQ==",
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/mobx"

ui/package.json

@@ -29,7 +29,7 @@
     "lodash.merge": "4.6.2",
     "lodash.throttle": "4.1.1",
     "lodash.uniqueid": "4.0.1",
-    "mobx": "6.7.0",
+    "mobx": "6.8.0",
     "mobx-react-lite": "3.4.0",
     "mobx-stored": "1.1.0",
     "promise-retry": "2.0.1",