Confusing warning message

[bisbell-ngc]

What happened:
For OS releases that are not EOL a warning message is displayed.
[0000] WARN failed to match cycle for distro Alpine Linux: <nil>

This leads the user to believe there is a problem.

What you expected to happen:
A debug message distro has been found.
Something like:
[0000] DEBUG matched cycle for distro Alpine Linux:3.17.5

How to reproduce it (as minimally and precisely as possible):
Run a scan on any container image or SBOM derived from one.
This example is using an sbom from the xeol:v0.9.10 container image.

$ xeol sbom:xeol.json
 ✔ EOL DB                          [no update available]  
 ✔ Scanned for EOL                 [0 eol matches]  
[0000]  WARN failed to match cycle for distro Alpine Linux: <nil>
✅ no EOL software has been found

Anything else we need to know?:
A potential solution would be to update the log.Warnf in ByDistroCpe to something like:
log.Debugf("matched cycle for distro %s:%s", distro.Name, version)

By this point in the code the err will always be nil because any potential err has already been handled here.

This update will product the following output

$ xeol -vv sbom:xeol.json 2>&1 | grep -i alpine
[0000] DEBUG matching distro Alpine Linux with version 3.17.5
[0000] DEBUG matched cycle for distro Alpine Linux:3.17.5

Environment:

• xeol version: 0.9.10