fix(test): Native test namespace refactor

[breautek]

Platforms affected

Android Tests

Motivation and Context

#1539 forgot to refactor the native test

With the newer AGP version, specifying the package id inside AndroidManifest.xml is deprecated and should be defined in the gradle file under android.namespace

Solves:

package="org.apache.cordova.unittests" found in source AndroidManifest.xml: /development/cordova/breautek/cordova-android/test/androidx/app/src/main/AndroidManifest.xml.
Setting the namespace via a source AndroidManifest.xml's package attribute is deprecated.
Please instead set the namespace (or testNamespace) in the module's build.gradle file, as described here: https://developer.android.com/studio/build/configure-app-module#set-namespace
This migration can be done automatically using the AGP Upgrade Assistant, please refer to https://developer.android.com/studio/build/agp-upgrade-assistant for more information.

Description

Removed package from AndroidManifest.xml test project.
Add namespace to it's gradle file.

Testing

Ran npm test.

Checklist

• I've run the tests to see all new and existing tests pass
• I added automated test coverage as appropriate for this change
• Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• I've updated the documentation if necessary

[codecov-commenter]

Codecov Report

Merging #1595 (33895e7) into master (a9d4d4e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1595   +/-   ##
=======================================
  Coverage   71.82%   71.82%           
=======================================
  Files          23       23           
  Lines        1796     1796           
=======================================
  Hits         1290     1290           
  Misses        506      506           

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