Make the build reproducible

This bumps to pom-fiji 5.0.3, which upgrades components:

* 3D_Viewer -> 3.0.1
* level_sets -> 1.0.1

The above aforementioned components were previously tainted releases,
relying on SNAPSHOTs in their dependency and/or inheritance hierarchy.

Specifically:

* 3D_Viewer 3.0.0 depends on the tainted VIB-lib 2.0.0.
* level_sets 1.0 extends pom-fiji-plugins 2.0.0-SNAPSHOT.