Use swig from BCR, allowing to remove last dep on WORKSPACE#9555

maliberty merged 2 commits intoThe-OpenROAD-Project:masterThe-OpenROAD-Project/OpenROAD:masterfrom

hzeller:feature-20260226-use-bcr-swighzeller/OpenROAD:feature-20260226-use-bcr-swigCopy head branch name to clipboard