chore(deps-dev): Bump @babel/core from 7.5.0 to 7.5.4

Bumps [@babel/core](https://github.com/babel/babel) from 7.5.0 to 7.5.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.5.0...v7.5.4)

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

yarn.lock

@@ -46,13 +46,13 @@
     "@babel/highlight" "^7.0.0"
 
 "@babel/core@^7.1.0", "@babel/core@^7.4.4":
-  version "7.5.0"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.5.0.tgz#6ed6a2881ad48a732c5433096d96d1b0ee5eb734"
-  integrity sha512-6Isr4X98pwXqHvtigw71CKgmhL1etZjPs5A67jL/w0TkLM9eqmFR40YrnJvEc1WnMZFsskjsmid8bHZyxKEAnw==
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.5.4.tgz#4c32df7ad5a58e9ea27ad025c11276324e0b4ddd"
+  integrity sha512-+DaeBEpYq6b2+ZmHx3tHspC+ZRflrvLqwfv8E3hNr5LVQoyBnL8RPKSBCg+rK2W2My9PWlujBiqd0ZPsR9Q6zQ==
   dependencies:
     "@babel/code-frame" "^7.0.0"
     "@babel/generator" "^7.5.0"
-    "@babel/helpers" "^7.5.0"
+    "@babel/helpers" "^7.5.4"
     "@babel/parser" "^7.5.0"
     "@babel/template" "^7.4.4"
     "@babel/traverse" "^7.5.0"
@@ -251,10 +251,10 @@
     "@babel/traverse" "^7.1.0"
     "@babel/types" "^7.2.0"
 
-"@babel/helpers@^7.5.0":
-  version "7.5.0"
-  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.5.0.tgz#7f0c17666e7ed8355ed6eff643dde12fb681ddb4"
-  integrity sha512-EgCUEa8cNwuMrwo87l2d7i2oShi8m2Q58H7h3t4TWtqATZalJYFwfL9DulRe02f3KdqM9xmMCw3v/7Ll+EiaWg==
+"@babel/helpers@^7.5.4":
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/@babel/helpers/-/helpers-7.5.4.tgz#2f00608aa10d460bde0ccf665d6dcf8477357cf0"
+  integrity sha512-6LJ6xwUEJP51w0sIgKyfvFMJvIb9mWAfohJp0+m6eHJigkFdcH8duZ1sfhn0ltJRzwUIT/yqqhdSfRpCpL7oow==
   dependencies:
     "@babel/template" "^7.4.4"
     "@babel/traverse" "^7.5.0"