VBLOCKS-2040: Updated android manifest to include new field to prevent mic turnoff

[afalls-twilio]

… turning off on android 30>

Submission Checklist

• [x] The CHANGELOG.md reflects any feature, bug fixes, or known issues made in the source code
• [ ] New unit tests and integration tests have beed added
• [x] Code coverage is more or equal to the previous coverage
• [ x A visual inspection of the Files changed tab was made prior to submitting the pull request ensuring the style guide was followed
• [ ] CI pipeline is green
• [x] Included screenshot if necessary

Description

Android specific, updated manifest to have mic service foregrounding flag enabled for IncomingCallService.

Breakdown

• Updated AndroidManifest.xml

Validation

Additional Notes

Based on a PR on the RN codebase.

Contributing to Twilio

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• [x] I acknowledge that all my contributions will be made under the project's license.