Add missing double-quote

What does this MR do?

The script portion has an unterminated String, causing this failure:

/scripts-263-14377466/step_script: eval: line 334: unexpected EOF while looking for matching `"'

https://ops.gitlab.net/gitlab-org/quality/staging/-/jobs/14377466

I believe this error is covering up other errors, such as: "Gitlab::Error::MissingCredentials Please provide a private_token or auth_token for user"

Check-list

• Ensure commits include Changelog: trailer
• Verify the change in all affected pipelines.