Update dependencies

[emlynmac]

Purpose

• ...

Pull Request Type

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

Upstream sample reference

Links to PR(s) that made the original change in the upstream sample:

• ...

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information

[vhuseinova-msft]

Is node 14 still the reccomended version here?
https://github.com/Azure-Samples/communication-services-web-chat-hero