Spinnaker Release 2026.1.2

lambdaInvoke: Opt-In in resolving in Orca the Invoke payload artifact (#7867) (#7869) ( 7682b3a8 )

build: Defer publishing configuration until -bom subproject evaluation (#7727) (#7728) ( 185398d4 )
build: Set group name on all root projects (backport #7834) (#7858) ( 2304cbd5 )
build: Use default resolution for javaPlatform (#7732) (#7733) ( e7c74225 )
libdiffs: order versions of differing component counts correctly (#7805) (#7816) ( 228d8387 )
packer: pass through Boolean false and numeric 0 -var values (#7806) (#7813) ( 04d9836b )
parsing: Fixes the issue reported in https://github.com/spinnaker/spinnaker/pull/7686 and adds some null checks and blank handling (#7856) (#7861) ( 3ebb471d )