Change hugo param usage for qualtrics

[lamATnginx]

Proposed changes

• Change naming + usage of qualtrics hugo param to be consistent with other 3rd party dep hugo params.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING document
• If applicable, I have added tests that prove my fix is effective or that my feature works
• If applicable, I have checked that any relevant tests pass after adding my changes
• I have updated any relevant documentation (README.md and CHANGELOG.md)

[lamATnginx]

Redundant. Combining with #425