update rocky publisher name for vmss runs

[nagworld9]

Description

VMSS has special condition for certain distros like rockylinux where we add plan property in the template. When we updated the new publisher's name last week, it was not updated in vmss condition.

Issue #

---

PR information

• The title of the PR is clear and informative.
• There are a small number of commits, each of which has an informative message. This means that previously merged commits do not appear in the history of the PR. For information on cleaning up the commits in your pull request, see this page.
• If applicable, the PR references the bug/issue that it fixes in the description.
• New Unit tests were added for the changes made

Quality of Code and Contribution Guidelines

• I have read the contribution guidelines.