Rescan only the latest tag in HarborRegistryV2

[jopemachine]

Summary  

• When rescanning images in the HarborRegistryV2 type registry, the rescan operation occurs only for a single tag that is considered as "latest."
• Even the ignored tags are not being logged. This is not the behavior the administrator expects.

Steps to Reproduce  

1. Run a Harbor registry for testing.
2. Push the test image to the registry with the tags 0.1 and 0.2.
3. Run the image rescan command for the testing registry.

Expected Behavior  

• The rescan should work for all tags, or at the least, the ignored tags should be logged.

Actual Behavior  

• Only version 0.2 is recognized, while version 0.1 is neither rescanned nor logged.

Logs/Errors  

• None