Fix PPU data download link
Fix PPU data download link

Previously this did not include all the necessary parameters for the All
England download.

Fixes #2133

ebmdatalab/openprescribing,ebmdatalab/openprescribing,annapowellsmith/openpresc,ebmdatalab/openprescribing,annapowellsmith/openpresc,annapowellsmith/openpresc,annapowellsmith/openpresc,ebmdatalab/openprescribing