docs(angular): update to v5.4.5

Author: xidedix

angular/docs/charts/examples/npm.md

@@ -1,5 +1,5 @@
 ```bash
-ng add @coreui/angular-chartjs@5.3
+ng add @coreui/angular-chartjs@5.4
 ```
 
 ---
@@ -10,5 +10,5 @@ Your other option is to use npm install directly.
 ```bash
 npm install chart.js@4
 npm install @coreui/chartjs@4
-npm install @coreui/angular-chartjs@5.3
+npm install @coreui/angular-chartjs@5.4
 ```