Bump angular from 1.4.14 to 1.7.9

Bumps [angular](https://github.com/angular/angular.js) from 1.4.14 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@v1.4.14...v1.7.9)

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

Author: dependabot[bot]

package-lock.json

@@ -23,7 +23,7 @@
         "heroku-postbuild": "gulp build"
     },
     "dependencies": {
-        "angular": "~1.4.4",
+        "angular": "~1.7.9",
         "angular-animate": "~1.4.4",
         "angular-clipboard": "~1.2.1",
         "angular-cookies": "~1.4.4",