Bump @ionic/angular from 5.6.6 to 5.6.8

Bumps [@ionic/angular](https://github.com/ionic-team/ionic) from 5.6.6 to 5.6.8.
- [Release notes](https://github.com/ionic-team/ionic/releases)
- [Changelog](https://github.com/ionic-team/ionic-framework/blob/master/CHANGELOG.md)
- [Commits](ionic-team/ionic-framework@v5.6.6...v5.6.8)

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

Author: dependabot[bot]

package-lock.json

@@ -31,7 +31,7 @@
     "@capacitor/android": "~2.4.7",
     "@capacitor/core": "~2.4.7",
     "@capacitor/ios": "~2.4.7",
-    "@ionic/angular": "^5.6.6",
+    "@ionic/angular": "^5.6.8",
     "@ionic/core": "^5.6.6",
     "@ionic/pwa-elements": "^3.0.2",
     "@ngneat/transloco": "^2.20.1",