chore(deps): update anchore/sbom-action action to v0.20.5 (#238)

| datasource  | package             | from    | to      |
| ----------- | ------------------- | ------- | ------- |
| github-tags | anchore/sbom-action | v0.20.4 | v0.20.5 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/ci.yml

@@ -63,7 +63,7 @@ jobs:
       run: dotnet test --configuration Release --logger:"GitHubActions;report-warnings=false"
 
     - name: Generate SBOM
-      uses: anchore/sbom-action@7b36ad622f042cab6f59a75c2ac24ccb256e9b45 # v0.20.4
+      uses: anchore/sbom-action@da167eac915b4e86f08b264dbdbc867b61be6f0c # v0.20.5
       if: runner.os == 'Windows'
       with:
         artifact-name: grafana-opentelemetry-dotnet.spdx.json