Link to download gene names in `make_gene_aliases_sqlite3.py` is out of date

[diegojehu]

It needs to be replaced with https://ftp.ebi.ac.uk/pub/databases/genenames/out_of_date_hgnc/json/...

pheweb/pheweb/load/make_gene_aliases_sqlite3.py

Line 14 in b646214

r = urllib.request.urlopen('http://ftp.ebi.ac.uk/pub/databases/genenames/new/json/non_alt_loci_set.json')