Print the ARC version number on startup

[mumoshu]

This would make it unnecessary for me to ask anyone how they upgraded ARC or which ARC version they are running when providing user support.

[ViktorLindgren95]

Just a simple const that we set manually each update that print at the start of init/main function call or is there an internal version handling that should be called instead?

This is low hanging enough for me to do 🤣

EDIT: Alternitvely would be making it read an ENV variable that we set in the dockerfile, that way you can make the process automatic with the github actions pipeline

[mumoshu]

This has been resolved via #1659. Thank you so much for your contribution @ViktorLindgren95!!