Optionally consume Leeway from git

[meysholdt]

Description

Optionally install leeway from git. This is helpful to test new versions of leeway before releasing them.

Related Issue(s)

Fixes #

How to test

werft run github -a leeway-from-git=true from CI to bypass job protection.

Release Notes

NONE

Documentation

Werft options:

• /werft with-local-preview
  If enabled this will build install/preview
• /werft with-preview
• /werft with-large-vm
• /werft with-integration-tests=all
  Valid options are all, workspace, webapp, ide, jetbrains, vscode, ssh

[iQQBot]

do we need upgrade leeway version before we delete --dont-retag or only remove this flag when leeway-from-git is present? because without this flag, old version leeway will build failed or stuck in somewhere.

[iQQBot]

with current leeway version, if remove --dont-retag flag, it will build failed, so maybe we need update github action to use latest leeway from git

[mads-hartmann]

We can't merge this until we cut a new release of Leeway and bump that everywhere. There are quite a few changes on Leeway main that isn't included in v0.3.1 and some of them are breaking, like the removal of --dont-retag

[aledbf]

/approve

[aledbf]

Here is the change that updates leeway in the dev-environment image #14631

[meysholdt]

do we need upgrade leeway version before we delete --dont-retag or only remove this flag when leeway-from-git is present? because without this flag, old version leeway will build failed or stuck in somewhere.

We can't merge this until we cut a new release of Leeway and bump that everywhere. There are quite a few changes on Leeway main that isn't included in v0.3.1 and some of them are breaking, like the removal of --dont-retag

Sice Leeway has been released & deployed here, I assume this PR can be merged now.