Add impact index fixture and filesystem artifact uploader

- Introduced a sample BOM index JSON file for impact index testing.
- Created unit tests for the impact index fixture to ensure proper loading of sample images.
- Implemented the FilesystemPackRunArtifactUploader class to handle artifact uploads to the local filesystem.
- Added comprehensive tests for the FilesystemPackRunArtifactUploader, covering file copying, missing files, and expression outputs.

src/__Libraries/StellaOps.Cryptography.Kms/Pkcs11Facade.cs

@@ -271,7 +271,7 @@ internal sealed class Pkcs11InteropFacade : IPkcs11Facade
                 }
                 catch
                 {
-                    # ignore logout failures
+                    // ignore logout failures
                 }
             }