ci: use very_good_workflows/dart_pub_publish

[marcossevilla]

Description

Replace the current pub publish workflow with the reusable dart_pub_publish workflow: https://workflows.vgv.dev/docs/workflows/dart_pub_publish

Requirements

• All CI/CD checks are passing.
• There is no drop in the test coverage percentage.

Additional Context

No response

[unicoderbot]

Great, I will work on a PR and push it soon.

• Preparing environment
  • Cloning repository
  • Setting up dev environment
• Working on changes
• Reviewing changes
• Opening pull request

I've opened a pull request: #127