fix: correct error mismatch causing race in fast walks (#5516)

Author: lebauce

pkg/fanal/artifact/local/fs.go

@@ -154,7 +154,7 @@ func (a Artifact) Inspect(ctx context.Context) (types.ArtifactReference, error)
 		}
 
 		// Build filesystem for post analysis
-		if err = composite.CreateLink(analyzerTypes, dir, filePath, filepath.Join(dir, filePath)); err != nil {
+		if err := composite.CreateLink(analyzerTypes, dir, filePath, filepath.Join(dir, filePath)); err != nil {
 			return xerrors.Errorf("failed to create link: %w", err)
 		}