builds-builder: bump to 0.0.103-20240506074546-75831aa4
From 0.0.102-20240430102530-2203cee3 To 0.0.103-20240506074546-75831aa4 See https://gitlab.wikimedia.org/repos/cloud/toolforge/builds-builder/-/releases
Signed-off-by: David Caro dcaro@wikimedia.org