chore(release): publish

- netlify-cms-app@2.12.21
 - netlify-cms-backend-bitbucket@2.12.3
 - netlify-cms-backend-git-gateway@2.11.3
 - netlify-cms-backend-github@2.11.4
 - netlify-cms-backend-gitlab@2.9.3
 - netlify-cms-backend-proxy@1.1.3
 - netlify-cms-backend-test@2.10.3
 - netlify-cms-core@2.30.5
 - netlify-cms-default-exports@2.3.3
 - netlify-cms-editor-component-image@2.6.5
 - netlify-cms-lib-auth@2.2.11
 - netlify-cms-lib-util@2.11.3
 - netlify-cms-lib-widgets@1.3.4
 - netlify-cms-locales@1.17.3
 - netlify-cms-media-library-cloudinary@1.3.7
 - netlify-cms-media-library-uploadcare@0.5.8
 - netlify-cms-proxy-server@1.3.3
 - netlify-cms-ui-default@2.11.4
 - netlify-cms-widget-boolean@2.3.3
 - netlify-cms-widget-code@1.2.3
 - netlify-cms-widget-date@2.5.4
 - netlify-cms-widget-datetime@2.6.3
 - netlify-cms-widget-file@2.7.3
 - netlify-cms-widget-image@2.7.3
 - netlify-cms-widget-list@2.6.4
 - netlify-cms-widget-map@1.4.3
 - netlify-cms-widget-markdown@2.12.4
 - netlify-cms-widget-number@2.4.4
 - netlify-cms-widget-object@2.5.4
 - netlify-cms-widget-relation@2.8.5
 - netlify-cms-widget-select@2.6.3
 - netlify-cms-widget-string@2.2.6
 - netlify-cms-widget-text@2.3.3
 - netlify-cms@2.10.57

packages/netlify-cms/package.json

@@ -1,7 +1,7 @@
 {
   "name": "netlify-cms",
   "description": "An extensible, open source, Git-based, React CMS for static sites.",
-  "version": "2.10.56",
+  "version": "2.10.57",
   "homepage": "https://www.netlifycms.org",
   "repository": "https://github.com/netlify/netlify-cms",
   "bugs": "https://github.com/netlify/netlify-cms/issues",
@@ -22,9 +22,9 @@
   "license": "MIT",
   "dependencies": {
     "codemirror": "^5.46.0",
-    "netlify-cms-app": "^2.12.20",
-    "netlify-cms-media-library-cloudinary": "^1.3.6",
-    "netlify-cms-media-library-uploadcare": "^0.5.7",
+    "netlify-cms-app": "^2.12.21",
+    "netlify-cms-media-library-cloudinary": "^1.3.7",
+    "netlify-cms-media-library-uploadcare": "^0.5.8",
     "react": "^16.8.4",
     "react-dom": "^16.8.4"
   },