The issue was reported to the ORB maintainer a few hours ago here
Unable to download linux jq 1.7 binary · Issue #29 · CircleCI-Public/jq-orb · GitHub
It seems that version 1.7 has been restructured.
For now the best option would be to set the version that you want the ORB to install to “jq-1.6”, which should retain the version already in place.