We need to pass all dirs where sboms will be generated, for external
document referencing.
We also need to set up dependencies between the repo sbom custom
targets, so that qtsvg sbom is only run after qtbase sbom.
We use the dependencies.yaml info to set up the dependencies.
Task-number: QTBUG-122899
Change-Id: Id3331e11742bc2c86e7ed52ce26b3ff21eace359
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
(cherry picked from commit 31126b2b775ae52a0d74aadf1aff8f6d79d0c6be)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
c2845f9eed