github actions with ubuntu-latest incompatible with sass-loader

[betacore]

Describe the bug
github actions uses the version 6 of nodejs which makes the sass-loader and node-sass incompatible with the build
environment.

To Reproduce
Steps to reproduce the behavior:

1. clean and build frontend via github actions
2. build fails because of incompatible versions

Expected behavior
The build on github should run as expected

Additional context
Update sass-loader to 10.2.0
Update node-sass to 6.0.1

[weickmanna]

@betacore build is now running in GitHub actions and sass-loader, node-sass are used from ui-kit-lib.

[sjahreis]

LGTM