SCA: Resolve sysbuild eclair integration limitation

[simhein]

Is your enhancement proposal related to a problem? Please describe.
The experimental SCA tool Eclairi integration has a limitation in using the sysbuild option. The cannot be used in combination with the SCA tool and this will lead to false reports or no reports if sysbuild is used.

That limitation needs to be resolved so the ECLAIR SCA tool can be used in the complete zephyr environment.

Describe the solution you'd like
There is only really only one solution which is resolving the limitation in the integration, so sysbuild can be used.

Additional context
Status and documentation of the integration:

• SCA: Add Eclair support #68324

[simhein]

This issue will be resolved with: #81512