BUG: (Ionic5 width cordova)build result: Could not find cordova.js script tag. Plugin loading may fail.

**Description:**

I created an project width "@ionic/cli " which use "ionic start XX --type=angular --cordova", but when build android , it console that "Could not find cordova.js script tag. Plugin loading may fail", and some cordova plugins not worked, also on IOS.

**Steps to Reproduce:**

```
1: npm i @ionic/cli@latest -g
2: ionic start demo --type=angular --cordova
3: ionic cordova plugin add ....
4: ionic cordova platform add ios/android
5: ionic cordova build android/ios

```

**Output:**

**My `ionic info`:**

```
Ionic:

Ionic CLI : 6.3.0 (C:\Users\admin\AppData\Roaming\npm\node_modules\@ionic\cli)
Ionic Framework : @ionic/angular 5.0.6
@angular-devkit/build-angular : 0.803.25
@angular-devkit/schematics : 8.3.25
@angular/cli : 8.3.25
@ionic/angular-toolkit : 2.2.0

Cordova:

Cordova CLI : 9.0.0 (cordova-lib@9.0.1)
Cordova Platforms : android 8.1.0
Cordova Plugins : cordova-plugin-ionic-keyboard 2.2.0, cordova-plugin-ionic-webview 4.1.3, (and 19 other plugins)

Utility:

cordova-res (update available: 0.11.0) : 0.9.0
native-run : 0.3.0

System:

NodeJS : v12.15.0 (D:\Softs\Nodejs\node.exe)
npm : 6.13.4
OS : Windows 10
```

**Other Information:**