feat: change the format of run_plan.json to simplify actions

[ptab]

Replaces:

• feat: add buildTool field to project.yml so we can leverage different workflows per project type  #453

[github-actions]

Package	Line Rate	Health
src.mpyl	92%	➖
src.mpyl.artifacts	60%	❌
src.mpyl.cli	61%	❌
src.mpyl.projects	95%	➖
src.mpyl.reporting	100%	✔
src.mpyl.reporting.formatting	99%	✔
src.mpyl.stages	63%	❌
src.mpyl.steps	88%	➖
src.mpyl.steps.build	82%	➖
src.mpyl.steps.deploy	73%	❌
src.mpyl.steps.deploy.bpm	62%	❌
src.mpyl.steps.deploy.k8s	81%	➖
src.mpyl.steps.deploy.k8s.resources	97%	➖
src.mpyl.steps.postdeploy	82%	➖
src.mpyl.steps.test	93%	➖
src.mpyl.utilities	100%	✔
src.mpyl.utilities.bpm	78%	❌
src.mpyl.utilities.dagster	71%	❌
src.mpyl.utilities.github	74%	❌
src.mpyl.utilities.helm	100%	✔
src.mpyl.utilities.http_client	95%	➖
src.mpyl.utilities.jenkins	69%	❌
src.mpyl.utilities.junit	97%	➖
src.mpyl.utilities.logging	78%	❌
src.mpyl.utilities.pyaml_env	100%	✔
src.mpyl.utilities.repo	65%	❌
src.mpyl.utilities.sbt	96%	➖
src.mpyl.utilities.subprocess	76%	❌
src.mpyl.utilities.yaml	100%	✔
Summary	81% (3013 / 3720)	➖

Minimum allowed line rate is 79%

[github-actions]

New release 455.4174 deployed at Test Pypi.
Install with

pip install -i https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple mpyl==455.4174