ci(publish-docker): Remove QEMU setup

[ditsuke]

Related Issue

• Info about Issue or bug

Closes: #118

Describe the changes you've made

After some investigation, @slayerjain and I concluded that QEMU is not required by our multiarch build. This PR removes the setup-qemu step from the docker-publish workflow.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, local variables)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Please let us know if any test cases are added

None.

Describe if there is any unusual behaviour of your code(Write NA if there isn't)

NA

Checklist:

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation.
• My changes generate no new warnings.
• I have added tests that prove my fix is effective or that my feature works.
• New and existing unit tests pass locally with my changes.

Screenshots (if any)

N/A

[slayerjain]

Awesome work @ditsuke. thanks for going the extra mile to investigate the need for qemu and some flags.