Add GitHub Status Checks for Deployments

[draco-vetus]

What is this PR about?

Adds github status checks for deployments and preview deployments.

Changes made

• Split the clone and build command, to read the commit hash in between

Minor quirks

• The "in_progress" status is not set immediately, but only after the initial Git clone has completed.
  Reading the commit hash beforehand via git ls-remote could lead to race conditions
• The "queued" status is not feasible to implement.
  As the deployment is based of branches and not on explicits commits, it is prone to race conditions

Checklist

Before submitting this PR, please make sure that:

• You created a dedicated branch based on the canary branch.
• You have read the suggestions in the CONTRIBUTING.md file https://github.com/Dokploy/dokploy/blob/canary/CONTRIBUTING.md#pull-request
• You have tested this PR in your local instance.

Issues related

closes #3405