Ability to specify version/branch of Integration

[ceelias]

The config.yaml allows you to specify integrations to use and pull down. I think it would be cool to be able to specify specific version or branches of the integration to checkout rather than the current solution which only uses the main branch.

Might look something like this:
version:

  -
    name: graph-jamf
    instanceId: testInstanceId
    directory: ./.integrations/graph-jamf
    gitRemoteUrl: https://github.com/JupiterOne/graph-jamf.git
    version: v2.3.2
    config:
      JAMF_HOST: example-host
      JAMF_USERNAME: example-username
      JAMF_PASSWORD: example-password

branch:

  -
    name: graph-jamf
    instanceId: testInstanceId
    directory: ./.integrations/graph-jamf
    gitRemoteUrl: https://github.com/JupiterOne/graph-jamf.git
    branch: my-friends-branch
    config:
      JAMF_HOST: example-host
      JAMF_USERNAME: example-username
      JAMF_PASSWORD: example-password