Update curl command to Artifactory to ensure that the response JSON has
at least one expected field.
Prior to this commit, it was possible for Artifactory to return an HTTP
200 response with a failure JSON payload of the form:
{"message":"RBv2 spring:spring-release-bundles-v2/<redacted> was
not found","status_code":404}
We now pipe `curl` output to `jq` and use that to ensure at least one
expected field is present.
Closes gh-44813
This commit applies the conventions that we documented on our wiki, see
https://github.com/spring-projects/spring-boot/wiki/GitHub-Actions.
In no particular order this:
* Use consistent single quotes for descriptions
* Order elements in a predictable order. In particular, inputs, outputs,
and environment variables are ordered alphabetically
Closes gh-42512
Andy Wilkinson
Phillip Webb
Stéphane Nicoll