build: update babel packages

(cherry picked from commit 1debc83)

Author: renovate-bot

packages/angular_devkit/build_angular/package.json

@@ -11,9 +11,9 @@
     "@angular-devkit/build-optimizer": "0.0.0",
     "@angular-devkit/build-webpack": "0.0.0",
     "@angular-devkit/core": "0.0.0",
-    "@babel/core": "7.8.7",
-    "@babel/generator": "7.8.8",
-    "@babel/preset-env": "7.8.7",
+    "@babel/core": "7.9.0",
+    "@babel/generator": "7.9.3",
+    "@babel/preset-env": "7.9.0",
     "@babel/template": "7.8.6",
     "@jsdevtools/coverage-istanbul-loader": "3.0.3",
     "@ngtools/webpack": "0.0.0",