OWASP Dep Check: change default image tag from 'latest'

[psig-bah]

PR Details

Getting rid of latest default image tag in the OWASP Dependency Check library step.

Description

While the library step image could be overridden, the default value, latest could introduce breaking changes without warning. Have updated the step to use the current stable image tag from our GitHub packages registry: 7.3.0-8.6-2

How Has This Been Tested

Locally

Types of Changes

• [ ] Docs change / refactoring / dependency upgrade
• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x] I am submitting this pull request to the appropriate branch
• [x] I have labeled this pull request appropriately
• [x] I have updated the documentation accordingly.
• [ ] All new and existing tests passed.