Bump sortablejs from 1.15.1 to 1.15.2 in /ui (#483)

Bumps [sortablejs](https://github.com/SortableJS/Sortable) from 1.15.1 to 1.15.2.
- [Release notes](https://github.com/SortableJS/Sortable/releases)
- [Commits](SortableJS/Sortable@1.15.1...1.15.2)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ui/core/package.json

@@ -39,7 +39,7 @@
     "moment": "^2.30.1",
     "popper.js": "^1.14.4",
     "sass": "^1.70.0",
-    "sortablejs": "^1.15.1",
+    "sortablejs": "^1.15.2",
     "tippy.js": "^6.3.7",
     "underscore": "^1.8.3",
     "v-tooltip": "^2.0.0-rc.33",

ui/wallet/package.json

@@ -30,7 +30,7 @@
     "moment": "^2.30.1",
     "popper.js": "^1.14.4",
     "sass": "^1.70.0",
-    "sortablejs": "^1.15.1",
+    "sortablejs": "^1.15.2",
     "tippy.js": "^6.3.7",
     "truffle-assertions": "^0.9.1",
     "typeahead": "^0.2.2",

ui/yarn.lock

@@ -10651,10 +10651,10 @@ [email protected]:
   resolved "https://registry.yarnpkg.com/sortablejs/-/sortablejs-1.10.2.tgz#6e40364d913f98b85a14f6678f92b5c1221f5290"
   integrity sha512-YkPGufevysvfwn5rfdlGyrGjt7/CRHwvRPogD/lC+TnvcN29jDpCifKP+rBqf+LRldfXSTh+0CGLcSg0VIxq3A==
 
-sortablejs@^1.15.1:
-  version "1.15.1"
-  resolved "https://registry.yarnpkg.com/sortablejs/-/sortablejs-1.15.1.tgz#9a35f52cdff449fb42ea8ecf222f3468d76e0a47"
-  integrity sha512-P5Cjvb0UG1ZVNiDPj/n4V+DinttXG6K8n7vM/HQf0C25K3YKQTQY6fsr/sEGsJGpQ9exmPxluHxKBc0mLKU1lQ==
+sortablejs@^1.15.2:
+  version "1.15.2"
+  resolved "https://registry.yarnpkg.com/sortablejs/-/sortablejs-1.15.2.tgz#4e9f7bda4718bd1838add9f1866ec77169149809"
+  integrity sha512-FJF5jgdfvoKn1MAKSdGs33bIqLi3LmsgVTliuX6iITj834F+JRQZN90Z93yql8h0K2t0RwDPBmxwlbZfDcxNZA==
 
 source-list-map@^2.0.0:
   version "2.0.1"