Revert "Revert "MER-1294 #comment Add db port param to Liquipy, now Grok can run on custom""

This reverts commit 9e7b7c8341ba5ad3d61af9bd08693a5ca9a31435.
Merge pull request #19 from brev/mer-1294-liquipy-custom-db-port

Mer 1294 liquipy custom db port