Add sprintcraft helm charm

Description

This MR adds a helm chart for Sprintcraft.

Supporting information

https://tasks.opencraft.com/browse/SE-5597

Testing instructions

Steps to test the changes:

1. Testing instructions of opencraft/dev/sprintcraft!47 (merged)

Dependencies

N/A

Screenshots

N/A

Checklist

If any of the items below is not applicable, do not remove them, but put a check in it.

• Git commit history is clean
• Git commits are following conventional-commit practices
• Chart dependencies are updated (helm dependency update <chart>)
• Chart versions are bumped
• Application version is bumped
• Documentation is added/updated

Additional context

N/A