fix source-mapping in preview mode

[leanmendoza]

https://github.com/decentraland/scene-runtime/pull/211

https://github.com/decentraland/unity-renderer/assets/8042536/a9095a07-f237-4802-9780-12144597231a

https://github.com/decentraland/unity-renderer/assets/8042536/607cb164-24dd-43f3-84d8-a675dc5d9e19

[github-actions[bot]]

After the CI passes:

Web

This branch can be previewed at:

• https://play.decentraland.org/?explorer-branch=fix/preview-proper-debugging
• https://play.decentraland.zone/?explorer-branch=fix/preview-proper-debugging

Desktop:

If you have the launcher installed (download launcher) you can press open on the following link:

• Open custom protocol
• Open custom protocol with Developer Mode

SDK 7

• Open SDK7 scenes playground
• Open SDK7 goerli plaza scenes
• Open SDK7 test scenes

SDK 6

• Open SDK6 scenes in preview

More

• Code coverage report: https://renderer-artifacts.decentraland.org/branch-coverage/fix/preview-proper-debugging
• Benchmark report: https://renderer-artifacts.decentraland.org/branch-benchmark/fix/preview-proper-debugging/index.html