refactor: Adjust KnownProvenance conditional cases

Functions accepting a `KnownProvenance` often only
handle the two explicit cases of `Artifact` or
`RepositoryProvenance`.
Add `else` cases to conditional `when`s.

All conditional cases of `Artifact` and `RepositoryProvenance`
following after `KnownProvenance` as a parameter type were
investigated by the same methods as the previous commits.

Signed-off-by: Jens Keim <jens.keim@forvia.com>

model/src/main/kotlin/config/PackageConfiguration.kt

@@ -77,6 +77,7 @@ data class PackageConfiguration(
             is UnknownProvenance -> false
             is ArtifactProvenance -> sourceArtifactUrl != null && sourceArtifactUrl == provenance.sourceArtifact.url
             is RepositoryProvenance -> vcs != null && vcs.matches(provenance)
+            else -> false
         }
     }
 }

model/src/main/kotlin/utils/PurlExtensions.kt

@@ -106,6 +106,8 @@ fun Provenance.toPurlExtras(): PurlExtras =
         }
 
         is UnknownProvenance -> PurlExtras()
+
+        else -> PurlExtras()
     }
 
 /**

scanner/src/main/kotlin/provenance/NestedProvenanceResolver.kt

@@ -50,6 +50,7 @@ class DefaultNestedProvenanceResolver(
         return when (provenance) {
             is ArtifactProvenance -> NestedProvenance(root = provenance, subRepositories = emptyMap())
             is RepositoryProvenance -> resolveNestedRepository(provenance)
+            else -> NestedProvenance(root = provenance, subRepositories = emptyMap())
         }
     }