Fix instruction for building media-no-video-codecs on Maven

[bjason]

ℹ️ Description

provide a summary of the changes and the related issue, relevant motivation and context

If builders try to build with media-no-video-codecs following the instruction in README, they will be getting Duplicate class error as classes of amazon-chime-sdk-media were also getting pulled in from amazon-chime-sdk dependency

Issue #, if available

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
  • README update
  • CHANGELOG update
  • guides update
• This change requires a dependency update
  • Amazon Chime SDK Media
  • Other (update corresponding legal documents)

🧪 How Has This Been Tested?

describe the tests that you ran to verify your changes, any relevant details for your test configuration

Built with normal media module and no-video-codecs module and verified the demo app and its app size.

implementation 'software.aws.chimesdk:amazon-chime-sdk:0.19.0'
implementation 'software.aws.chimesdk:amazon-chime-sdk-media:0.19.0'

implementation 'software.aws.chimesdk:amazon-chime-sdk-media-no-video-codecs:0.19.0'
implementation ('software.aws.chimesdk:amazon-chime-sdk:0.19.0') {
    exclude module: 'amazon-chime-sdk-media'
}

Unit test coverage

• Class coverage:
• Line coverage:

Additional Manual Test

• Pause and resume remote video
• Switch local camera
• Rotate screen back and forth

📱 Screenshots, if available

provide screenshots/video record if there's a UI change in demo app

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