Fix auth values from unintended test values

[kimallen]

Ticket

Resolves #00

Changes

• Fixes auth email and tenant key in cloudflareservice

Context for reviewers

I'm not sure how those test values got through. Changed it back to use the env't vars

Setup

Add a record through the prototype and ensure it can be successfully added (how to)

Code Review Verification Steps

As the original developer, I have

Satisfied acceptance criteria and met development standards

• Met the acceptance criteria, or will meet them in a subsequent PR
• Created/modified automated tests
• Update documentation in READMEs and/or onboarding guide

As a code reviewer, I have

Reviewed, tested, and left feedback about the changes

• Pulled this branch locally and tested it
• Verified code meets all checks above. Address any checks that are not satisfied
• Reviewed this code and left comments. Indicate if comments must be addressed before code is merged
• Checked that all code is adequately covered by tests
• Verify migrations are valid and do not conflict with existing migrations

[erinysong]

LGTM! Successfully tested and submitted a DNS prototype record