Automatically trigger build on model change

Our snapshot/dev p2 repository sometimes goes into the following state regarding dependencies:

• • SET depends on model build #105
• SET depends on toolboxmodel build #100
• toolboxmodel #100 depends on model #104

This occurs due to toolboxmodel not being rebuilt after model is updated. This ends up causing dependency resolution errors. This PR resolves the issue by automatically starting a new toolboxmodel build upon a model build finishing.

Limited to main branch only to avoid excessive resource usage.