Alpha11

[sserrata]

Description

• Refrain from passing credentials kwarg to get_job_results() in iter_job_results(), fixes iter_job_results() overrides credentials in get_job_results() #154
• Check for credentials in instance instead of self.access_token_, fixes Subsequent refresh() attempts fail when using developer_token #153

Motivation and Context

Introduces important bug fixes.

How Has This Been Tested?

Scripts and CI/CD

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)

Checklist

• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes if appropriate.
• All new and existing tests passed.