Fix download URL of RePEc data

Status Job ID Name Coverage
  Build
passed #2478
jekyll
build

00:00:18

failed #2477
jekyll
build

00:00:00

failed #2476
jekyll
build

00:00:00

failed #2475
jekyll
build

00:01:37

failed #2474
jekyll
build

00:00:00

failed #2473
jekyll
build

00:00:00

failed #2470
jekyll
build

00:00:00

failed #2469
jekyll
build

00:00:00