fix(@angular-devkit/build-angular): update babel to 7.8.7

Babel versions 7.8.0-7.8.6 contain a defect that can cause failures due to babel plugin changes (even in patch versions).  Plugins are not pinned as they are transitive dependencies of the packages adjusted in this commit.  This failure will prevent a newly generated project from building and can only be worked around by disabling differential loading.

Fixes: #17262

Author: clydin

packages/angular_devkit/build_angular/package.json

@@ -11,14 +11,14 @@
     "@angular-devkit/build-optimizer": "0.0.0",
     "@angular-devkit/build-webpack": "0.0.0",
     "@angular-devkit/core": "0.0.0",
-    "@babel/core": "7.8.3",
-    "@babel/preset-env": "7.8.3",
+    "@babel/core": "7.8.7",
+    "@babel/preset-env": "7.8.7",
     "@ngtools/webpack": "0.0.0",
     "ajv": "6.10.2",
     "autoprefixer": "9.6.1",
-    "browserslist": "4.8.6",
+    "browserslist": "4.10.0",
     "cacache": "12.0.2",
-    "caniuse-lite": "1.0.30001024",
+    "caniuse-lite": "1.0.30001035",
     "circular-dependency-plugin": "5.2.0",
     "clean-css": "4.2.1",
     "coverage-istanbul-loader": "2.0.3",