Update Docker Hub username in dependabot configuration

[mathieu-benoit]

Update Docker Hub username in dependabot configuration

[github-actions]

Overview

Image reference	score-k8s:latest	score-k8s:latest
- digest	d8523867aaf7	3d8c600164ec
- tag	latest	latest
- provenance	5a6f12b	b0bd5cd
- vulnerabilities
- platform	linux/amd64	linux/amd64
- size	8.4 MB	8.4 MB (-13 B)
- packages	65	65

Policies (0 improved, 0 worsened)

Policy Name	score-k8s:latest	score-k8s:latest	Change	Standing
Default non-root user	✅	✅		No Change
No copyleft licenses	⚠️ 2	⚠️ 2		No Change
No fixable critical or high vulnerabilities	✅	✅		No Change
No high-profile vulnerabilities	✅	✅		No Change
No outdated base images	⚠️	⚠️		No Change
No unapproved base images	✅	✅		No Change
Supply chain attestations	✅	✅		No Change

Packages and Vulnerabilities (1 package changes and 0 vulnerability changes)

• ♾️ 1 packages changed
• 64 packages unchanged

Changes for packages of type golang (1 changes)

	Package	Version score-k8s:latest	Version score-k8s:latest
♾️	github.com/score-spec/score-k8s	0.0.0-20260725172654-5a6f12be4340+dirty	0.0.0-20260725174116-b0bd5cdcf3b1+dirty