Add bin/yq and remove parseYaml function in bin/start

[rangerz]

• Finally removed unreadable parseYaml bash function
• yq 4 can be used to merge yaml files in the future 💡💡💡

[what-the-diff[bot]]

PR Summary

• Switch to yq for start script parsing The start script has been updated to use yq instead of parseYaml for improved handling.

• Add yq wrapper in bin directory A new file, bin/yq, has been added as a wrapper for the mikefarah/yq Docker image to facilitate its use in the project.