update development workflow

[fichtner]

Important notices

Before you add a new report, we ask you kindly to acknowledge the following:

• I have read the contributing guide lines at https://github.com/opnsense/docs/blob/master/CONTRIBUTING.md
• I have searched the existing issues and I am convinced that mine is new.

Is your feature request related to a problem? Please describe.

The dev workflow is out of date.

Describe the solution you like

Update the dev workflow.

Describe alternatives you considered

Not updating the dev workflow.

Additional context

N/A

[Monviech]

Is the dev workflow up to date now?

[fichtner]

No :)