Update integration-template to adopt recommendations from recent PR

[aiwilliams]

A number of issues came up in an initial integration PR:

1. Discourage Promise.all by updating the template accordingly: https://github.com/JupiterOne/integration-template/blob/master/src/steps/access.ts#L39

2. See https://github.com/JupiterOne/integration-template/issues/29 ~~Make jest.config.js require dotenv/config like the Azure integration does. The google-cloud integration does it differently, but it shouldn't be required to have a file like that.~~

3. Ensure there is an example of doing a recording and snapshot (something like the Artifactory integration does).