deps(deps): bump actions/upload-artifact from 4 to 6

Bumps [actions/upload-artifact](https://github.com/actions/upload-artifact) from 4 to 6.
- [Release notes](https://github.com/actions/upload-artifact/releases)
- [Commits](actions/upload-artifact@v4...v6)

---
updated-dependencies:
- dependency-name: actions/upload-artifact
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/sbom.yml

@@ -69,7 +69,7 @@ jobs:
           python .github/scripts/sbom_json_to_csv.py sbom.json SBOM_${REPO_NAME}.csv
 
       - name: Upload SBOM CSV as artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: sbom-csv
           path: SBOM_${{ github.event.repository.name }}.csv
@@ -92,7 +92,7 @@ jobs:
 
 
       - name: Upload Vulnerability Report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: grype-report
           path: grype-report-${{ github.event.repository.name }}.csv
@@ -104,7 +104,7 @@ jobs:
           python .github/scripts/sbom_packages_to_csv.py sbom.json $REPO_NAME
 
       - name: Upload Package Inventory CSV
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v6
         with:
           name: sbom-packages
           path: sbom-packages-${{ github.event.repository.name }}.csv