Remove unused SBOM report workflow from GitHub Actions (#100124)

* Remove SBOM report workflow from GitHub Actions

* Remove SBOM report workflow from CODEOWNERS

.github/CODEOWNERS

@@ -784,7 +784,6 @@ embed.go @grafana/grafana-as-code
 /.github/workflows/publish-technical-documentation-next.yml @grafana/docs-tooling
 /.github/workflows/publish-technical-documentation-release.yml @grafana/docs-tooling
 /.github/workflows/remove-milestone.yml @grafana/grafana-developer-enablement-squad
-/.github/workflows/sbom-report.yml @grafana/security-team
 /.github/workflows/scripts/json-file-to-job-output.js @grafana/plugins-platform-frontend
 /.github/workflows/stale.yml @grafana/grafana-developer-enablement-squad
 /.github/workflows/update-changelog.yml @grafana/grafana-developer-enablement-squad

.github/workflows/sbom-report.yml

@@ -1,15 +0,0 @@
-name: syft-sbom-ci
-on:
-  release:
-    types: [ published ]
-  workflow_dispatch:
-jobs:
-  syft-sbom:
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v4
-    - name: Anchore SBOM Action
-      uses: grafana/shared-workflows/actions@syft-sbom-v0.0.1
-      with:
-        artifact-name: ${{ github.event.repository.name }}-spdx.json