Refactor Github Workflows so that publish image to Docker Hub not in pull_request event

[kyzooghost]

Description

CI - Refactor Github Workflows so that publish image to Docker Hub not in pull_request event across entire repo

Motivation

Enable external contributor PRs

Tasks

• Refactor Github Workflows so that publish image to Docker Hub not in pull_request event across entire repo

Acceptance criteria

• No Docker publish/push to Docker Hub on pull_request event

Risks

• Docker push may be coupled to E2E tests - may need to re-design CI to enable this ticket

Remember to

• Add the documentation label in case there is an impact on the documentation
• Add priority and team labels
• Add Task for updating the Runbook or adding/updating existing metrics and alerts.