fix: codebuild e2e modelgen tests

[phani-srikar]

Description of changes

• Add required additional Android dependencies to successfully build the Android modelgen test app
• Add missing permissions to execute the script.

Issue #, if available

Description of how you validated changes

Checklist

• PR description included
• yarn test passes
• Tests are changed or added
• Relevant documentation is changed or added (and PR referenced)
• Breaking changes to existing customers are released behind a feature flag or major version update
• Changes are tested using sample applications for all relevant platforms (iOS/android/flutter/Javascript) that use the feature added/modified

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Merging #633 (ad37156) into main (225ad09) will not change coverage.
The diff coverage is n/a.

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@@           Coverage Diff           @@
##             main     #633   +/-   ##
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  Coverage   85.92%   85.92%           
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  Files         152      152           
  Lines        7491     7491           
  Branches     1957     1957           
=======================================
  Hits         6437     6437           
  Misses        961      961           
  Partials       93       93           

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