⬆️ Bump @babel/core from 7.6.3 to 7.6.4

Bumps [@babel/core](https://github.com/babel/babel) from 7.6.3 to 7.6.4.
- [Release notes](https://github.com/babel/babel/releases)
- [Changelog](https://github.com/babel/babel/blob/master/CHANGELOG.md)
- [Commits](babel/babel@v7.6.3...v7.6.4)

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

Author: dependabot-preview[bot]

yarn.lock

@@ -74,14 +74,14 @@
     source-map "^0.5.0"
 
 "@babel/core@^7.0.0", "@babel/core@^7.1.0", "@babel/core@^7.2.2", "@babel/core@^7.4.3", "@babel/core@^7.4.4":
-  version "7.6.3"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.6.3.tgz#44de824e89eaa089bb12da7337bc9bdff2ab68f9"
-  integrity sha512-QfQ5jTBgXLzJuo7Mo8bZK/ePywmgNRgk/UQykiKwEtZPiFIn8ZqE6jB+AnD1hbB1S2xQyL4//it5vuAUOVAMTw==
+  version "7.6.4"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.6.4.tgz#6ebd9fe00925f6c3e177bb726a188b5f578088ff"
+  integrity sha512-Rm0HGw101GY8FTzpWSyRbki/jzq+/PkNQJ+nSulrdY6gFGOsNseCqD6KHRYe2E+EdzuBdr2pxCp6s4Uk6eJ+XQ==
   dependencies:
     "@babel/code-frame" "^7.5.5"
-    "@babel/generator" "^7.6.3"
+    "@babel/generator" "^7.6.4"
     "@babel/helpers" "^7.6.2"
-    "@babel/parser" "^7.6.3"
+    "@babel/parser" "^7.6.4"
     "@babel/template" "^7.6.0"
     "@babel/traverse" "^7.6.3"
     "@babel/types" "^7.6.3"
@@ -91,17 +91,17 @@
     lodash "^4.17.13"
     resolve "^1.3.2"
     semver "^5.4.1"
-    source-map "^0.6.1"
+    source-map "^0.5.0"
 
-"@babel/generator@^7.0.0", "@babel/generator@^7.4.0", "@babel/generator@^7.4.4", "@babel/generator@^7.6.3":
-  version "7.6.3"
-  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.6.3.tgz#71d5375264f93ec7bac7d9f35a67067733f5578e"
-  integrity sha512-hLhYbAb3pHwxjlijC4AQ7mqZdcoujiNaW7izCT04CIowHK8psN0IN8QjDv0iyFtycF5FowUOTwDloIheI25aMw==
+"@babel/generator@^7.0.0", "@babel/generator@^7.4.0", "@babel/generator@^7.4.4", "@babel/generator@^7.6.3", "@babel/generator@^7.6.4":
+  version "7.6.4"
+  resolved "https://registry.yarnpkg.com/@babel/generator/-/generator-7.6.4.tgz#a4f8437287bf9671b07f483b76e3bb731bc97671"
+  integrity sha512-jsBuXkFoZxk0yWLyGI9llT9oiQ2FeTASmRFE32U+aaDTfoE92t78eroO7PTpU/OrYq38hlcDM6vbfLDaOLy+7w==
   dependencies:
     "@babel/types" "^7.6.3"
     jsesc "^2.5.1"
     lodash "^4.17.13"
-    source-map "^0.6.1"
+    source-map "^0.5.0"
 
 "@babel/helper-annotate-as-pure@^7.0.0":
   version "7.0.0"
@@ -325,10 +325,10 @@
     esutils "^2.0.2"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.4.3", "@babel/parser@^7.4.4", "@babel/parser@^7.6.0", "@babel/parser@^7.6.3":
-  version "7.6.3"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.6.3.tgz#9eff8b9c3eeae16a74d8d4ff30da2bd0d6f0487e"
-  integrity sha512-sUZdXlva1dt2Vw2RqbMkmfoImubO0D0gaCrNngV6Hi0DA4x3o4mlrq0tbfY0dZEUIccH8I6wQ4qgEtwcpOR6Qg==
+"@babel/parser@^7.0.0", "@babel/parser@^7.1.0", "@babel/parser@^7.4.3", "@babel/parser@^7.4.4", "@babel/parser@^7.6.0", "@babel/parser@^7.6.3", "@babel/parser@^7.6.4":
+  version "7.6.4"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.6.4.tgz#cb9b36a7482110282d5cb6dd424ec9262b473d81"
+  integrity sha512-D8RHPW5qd0Vbyo3qb+YjO5nvUVRTXFLQ/FsDxJU2Nqz4uB5EnUN0ZQSEYpvTIbRuttig1XbHWU5oMeQwQSAA+A==
 
 "@babel/plugin-external-helpers@^7.0.0":
   version "7.2.0"