Bump grunt-babel from 6.0.0 to 7.0.0

Bumps [grunt-babel](https://github.com/babel/grunt-babel) from 6.0.0 to 7.0.0.
- [Release notes](https://github.com/babel/grunt-babel/releases)
- [Commits](babel/grunt-babel@v6.0.0...v7.0.0)

Signed-off-by: dependabot-preview[bot] <[email protected]>

package.json

@@ -35,7 +35,7 @@
     "cross-env": "^3.2.3",
     "file-loader": "^0.11.2",
     "grunt": "^1.0.1",
-    "grunt-babel": "^6.0.0",
+    "grunt-babel": "^7.0.0",
     "grunt-check-dependencies": "^1.0.0",
     "grunt-cli": "^1.2.0",
     "grunt-contrib-watch": "^1.0.0",

yarn.lock

@@ -192,7 +192,7 @@ babel-code-frame@^6.26.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
-babel-core@^6.0.12, babel-core@^6.22.1, babel-core@^6.26.0:
+babel-core@^6.22.1, babel-core@^6.26.0:
   version "6.26.3"
   resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-6.26.3.tgz#b2e2f09e342d0f0c88e2f02e067794125e75c207"
   dependencies:
@@ -1718,11 +1718,9 @@ [email protected]:
   version "1.9.2"
   resolved "https://registry.yarnpkg.com/growl/-/growl-1.9.2.tgz#0ea7743715db8d8de2c5ede1775e1b45ac85c02f"
 
-grunt-babel@^6.0.0:
-  version "6.0.0"
-  resolved "https://registry.yarnpkg.com/grunt-babel/-/grunt-babel-6.0.0.tgz#378189b487de1168c4c4a9fc88dd6005b35df960"
-  dependencies:
-    babel-core "^6.0.12"
+grunt-babel@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/grunt-babel/-/grunt-babel-7.0.0.tgz#13c90c01f154dec214e0eeb5d66ac7c70cedf2d3"
 
 grunt-check-dependencies@^1.0.0:
   version "1.0.0"