feat: add new colors light-green and burgundy

[michaelmkraus]

Proposed changes

• add new color burgundy and light-green

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (fix on existing components or architectural decisions)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

[github-actions]

🔭🐙🐈 Test this branch here: https://db-ux-design-system.github.io/core-web/review/feat-add-colors-burgundy-green

[mfranzke]

@michaelmkraus @nmerget these are most likely planned for release 2.2.0, not 2.1.0; so we need to revert them from main again.

[nmerget]

If @leape is ready, we could release it in 2.1.0 as well

[mfranzke]

If @leape is ready, we could release it in 2.1.0 as well

exactly, that's what we need to find out later. But as it's part of the current sprint, some issues are currently still in progress, https://github.com/db-ux-design-system/core-team/issues/254 is defined for milestone 2.2.0 and we haven't talked about this within our final release planning meeting yesterday, I would doubt that we could make it for 2.1.0. But I will discuss this.