[Security] Bump angular from 1.7.8 to 1.7.9

Bumps [angular](https://github.com/angular/angular.js) from 1.7.8 to 1.7.9. **This update includes a security fix.**
- [Release notes](https://github.com/angular/angular.js/releases)
- [Changelog](https://github.com/angular/angular.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/angular/angular.js/compare/v1.7.8...v1.7.9)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

yarn.lock

@@ -1052,9 +1052,9 @@ angular-toastr@^2.1.1:
   integrity sha1-n4NQykghRaRNARp1W4+zYj1gVEw=
 
 angular@^1.7.5:
-  version "1.7.8"
-  resolved "https://registry.yarnpkg.com/angular/-/angular-1.7.8.tgz#b77ede272ce1b261e3be30c1451a0b346905a3c9"
-  integrity sha512-wtef/y4COxM7ZVhddd7JtAAhyYObq9YXKar9tsW7558BImeVYteJiTxCKeJOL45lJ/+7B4wrAC49j8gTFYEthg==
+  version "1.7.9"
+  resolved "https://registry.yarnpkg.com/angular/-/angular-1.7.9.tgz#e52616e8701c17724c3c238cfe4f9446fd570bc4"
+  integrity sha512-5se7ZpcOtu0MBFlzGv5dsM1quQDoDeUTwZrWjGtTNA7O88cD8TEk5IEKCTDa3uECV9XnvKREVUr7du1ACiWGFQ==
 
 ansi-colors@3.2.3:
   version "3.2.3"