Add `rollbar_team` Data Source to lookup existing teams.

[Omicron7]

Description of the change

This adds a rollbar_team data source that can be used to look up existing teams in Rollbar either by team_id or name. This could allow looking up a team managed in another terraform module/folder in order to add users to it in a different module/folder.

We manage our Rollbar projects and teams in separate modules/folders. This will help facilitate interdependencies.

I see a task for lint, but am not seeing any linter setup for the project.

Type of change

• [ ] Bug fix (non-breaking change that fixes an issue)
• [X] New feature (non-breaking change that adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Maintenance
• [ ] New release

Related issues

Checklists

Development

• [ ] Lint rules pass locally
• [X] The code changed/added as part of this pull request has been covered with tests
• [X] All tests related to the changed code pass in development

Code review

• [ ] This pull request has a descriptive title and information useful to a reviewer. There may be a screenshot or screencast attached
• [ ] "Ready for review" label attached to the PR and reviewers assigned
• [ ] Issue from task tracker has a link to this pull request
• [ ] Changes have been reviewed by at least one other engineer

[github-actions[bot]]

:tada: This PR is included in version 1.5.0 :tada:

The release is available on:

• GitHub release
• v1.5.0

Your semantic-release bot :package::rocket: