feat(misconf): support for ignoring by inline comments for Dockerfile

[nikpivkin]

Description

Example config:

FROM scratch

# trivy:ignore:AVD-DS-0022
MAINTAINER [email protected]

Before:

❯ trivy conf Dockerfile.dev |grep "AVD-DS-0022"
2024-12-17T18:12:25+06:00       INFO    [misconfig] Misconfiguration scanning is enabled
2024-12-17T18:12:26+06:00       INFO    Detected config files   num=1
AVD-DS-0022 (HIGH): MAINTAINER should not be used: 'MAINTAINER [email protected]'

After:

❯ ./trivy conf Dockerfile.dev |grep "AVD-DS-0022"
2024-12-17T18:12:14+06:00       INFO    [misconfig] Misconfiguration scanning is enabled
2024-12-17T18:12:15+06:00       INFO    Detected config files   num=1

Related issues

• Close feat(misconf): support for ignoring by inline comments for Dockerfile #8113

Checklist

• I've read the guidelines for contributing to this repository.
• I've followed the conventions in the PR title.
• I've added tests that prove my fix is effective or that my feature works.
• I've updated the documentation with the relevant information (if needed).
• I've added usage information (if the PR introduces new options)
• I've included a "before" and "after" example to the description (if the PR is a user interface change).