fix(plugin-meetings): added timeout for ICE candidate gathering

[marcin-bazyl]

COMPLETES #< INSERT LINK TO ISSUE >

This pull request addresses

I've seen cases where Chrome never called us back with gathering state "complete" or null ice candidate even though we got a lot of (possibly all?) ICE candidates. This fix adds a timeout to ensure we don't get stuck.

by making the following changes

Added a timeout for ICE candidate gathering. After the timer expires, we check if we have enough candidates and continue or fail.

Change Type

• [x] 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 change)
• [ ] Documentation update
• [ ] Tooling change
• [ ] Internal code refactor

The following scenarios where tested

manual tests with sample app, existing automatic tests

I certified that

• [x] I have read and followed contributing guidelines

• [x] I discussed changes with code owners prior to submitting this pull request

• [x] I have not skipped any automated checks

• [x] All existing and new tests passed

• [] I have updated the documentation accordingly

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