Bump angular from 1.6.3 to 1.7.9

Bumps [angular](https://github.com/angular/angular.js) from 1.6.3 to 1.7.9.
- [Release notes](https://github.com/angular/angular.js/releases)
- [Changelog](https://github.com/angular/angular.js/blob/master/CHANGELOG.md)
- [Commits](angular/angular.js@v1.6.3...v1.7.9)

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

Author: dependabot[bot]

package.json

@@ -1,7 +1,7 @@
 {
   "version": "1.0.7-dev",
   "dependencies": {
-    "angular": "1.6.3",
+    "angular": "1.7.9",
     "angular-animate": "1.6.3",
     "angular-base64": "2.0.5",
     "angular-chart.js": "1.1.1",