Allow everybeam 0.5.0
The EveryBeam main branch is at 0.5.0 now. The API of the parts that DP3 uses are stable, so DP3 will also still work with 0.4.x
The EveryBeam main branch is at 0.5.0 now. The API of the parts that DP3 uses are stable, so DP3 will also still work with 0.4.x