ci: fix indentation in .commitlintrc.json
ci: fix indentation in .commitlintrc.json

Fixes the tab/space indentation in .commitlintrc.json to be the same on
all lines.

Signed-off-by: Alexander Trost <88b6b84d9fa0dbf878e34ae3d402bc4895fcd37e@googlemail.com>

rook/rook,rook/rook,rook/rook,rook/rook,rook/rook