Bump node to 16 and npm

[djsmith85]

Type of change

• Bug fix
• New feature development
• Tech debt (refactoring, code cleanup, dependency upgrades, etc)
• Build/deploy pipeline (DevOps)
• Other

Objective

With our plan to bump electron soon, we need to upgrade Node to v16 (LTS) as newer version of electron require it. Also not a bad idea to move to the newest LTS.

Code changes

• package.json: Updated engine requirements and bumped @types/node to 16.11.12
• common/package.json: Bump @types/node to 16.11.12
• electron/package.json: Bump @types/node to 16.11.12
• node/package.json: Bump @types/node to 16.11.12
• build.yml: Setting the build to require node v16 and npm v8
• README.md: Updated requirements
• Various package-lock.json: Updates after running npm i

Testing requirements

All unit test still green.
Regression testing will be needed on the clients once those are updated

Before you submit

• I have checked for linting errors (npm run lint) (required)
• I have added unit tests where it makes sense to do so (encouraged but not required)
• This change requires a documentation update (notify the documentation team)
• This change has particular deployment requirements (notify the DevOps team)

[Hinton]

Do we still need this? We might be able to remove this whole block.

[djsmith85]

@Hinton: Tested this on a separate branch and it builds fine. Removed it.