feature request: allow saving of results and later be uploaded/sent/used

[eriweb]

Use case

We have various environments, and those environments may have different versions of an application running. We would like to better know which environments have vulnerabilities in them.

Current status

snyk test has a --json-file-output as well as --sarif-file-output parameter that allows us to store the test result, but AFAIK there is no way to pass that same file as an argument to snyk test for uploading.

Feature request

allow the snyk test output to be saved in a format that can later be used by the CLI. That way we can assign that report to an environment using --target-reference during deployment/promotion