Bump @babel/plugin-proposal-decorators from 7.4.4 to 7.6.0 (#12232)

Bumps [@babel/plugin-proposal-decorators](https://github.com/babel/babel) from 7.4.4 to 7.6.0.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](https://github.com/babel/babel/compare/v7.4.4...v7.6.0)

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

package.json

@@ -61,7 +61,7 @@
   "dependencies": {
     "@babel/core": "^7.4.5",
     "@babel/plugin-proposal-class-properties": "^7.5.5",
-    "@babel/plugin-proposal-decorators": "^7.4.4",
+    "@babel/plugin-proposal-decorators": "^7.6.0",
     "@babel/plugin-proposal-object-rest-spread": "^7.4.4",
     "@babel/plugin-syntax-dynamic-import": "^7.2.0",
     "@babel/plugin-transform-react-inline-elements": "^7.2.0",

yarn.lock

@@ -114,10 +114,10 @@
     "@babel/traverse" "^7.4.4"
     "@babel/types" "^7.4.4"
 
-"@babel/helper-create-class-features-plugin@^7.4.4", "@babel/helper-create-class-features-plugin@^7.5.5":
-  version "7.5.5"
-  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.5.5.tgz#401f302c8ddbc0edd36f7c6b2887d8fa1122e5a4"
-  integrity sha512-ZsxkyYiRA7Bg+ZTRpPvB6AbOFKTFFK4LrvTet8lInm0V468MWCaSYJE+I7v2z2r8KNLtYiV+K5kTCnR7dvyZjg==
+"@babel/helper-create-class-features-plugin@^7.5.5", "@babel/helper-create-class-features-plugin@^7.6.0":
+  version "7.6.0"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.6.0.tgz#769711acca889be371e9bc2eb68641d55218021f"
+  integrity sha512-O1QWBko4fzGju6VoVvrZg0RROCVifcLxiApnGP3OWfWzvxRZFCoBD81K5ur5e3bVY2Vf/5rIJm8cqPKn8HUJng==
   dependencies:
     "@babel/helper-function-name" "^7.1.0"
     "@babel/helper-member-expression-to-functions" "^7.5.5"
@@ -306,12 +306,12 @@
     "@babel/helper-create-class-features-plugin" "^7.5.5"
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-proposal-decorators@^7.4.4":
-  version "7.4.4"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-decorators/-/plugin-proposal-decorators-7.4.4.tgz#de9b2a1a8ab0196f378e2a82f10b6e2a36f21cc0"
-  integrity sha512-z7MpQz3XC/iQJWXH9y+MaWcLPNSMY9RQSthrLzak8R8hCj0fuyNk+Dzi9kfNe/JxxlWQ2g7wkABbgWjW36MTcw==
+"@babel/plugin-proposal-decorators@^7.6.0":
+  version "7.6.0"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-decorators/-/plugin-proposal-decorators-7.6.0.tgz#6659d2572a17d70abd68123e89a12a43d90aa30c"
+  integrity sha512-ZSyYw9trQI50sES6YxREXKu+4b7MAg6Qx2cvyDDYjP2Hpzd3FleOUwC9cqn1+za8d0A2ZU8SHujxFao956efUg==
   dependencies:
-    "@babel/helper-create-class-features-plugin" "^7.4.4"
+    "@babel/helper-create-class-features-plugin" "^7.6.0"
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-syntax-decorators" "^7.2.0"