Like it says, it's a docker image built on alpine with curl, jq and some other usefull packages installed.
3.11,latest(v3.11/Dockerfile)3.10(v3.10/Dockerfile)3.9(v3.9/Dockerfile)3.8(v3.8/Dockerfile)3.7(v3.7/Dockerfile)
docker run --rm kublr/alpine-plus curl https://www.google.com