Merge pull request #613 from posit-dev/fix/build-metadata-file-default

fix: default `metadata_file` to None for serial builds

Author: bschwedler

posit-bakery/posit_bakery/config/config.py

@@ -1179,7 +1179,7 @@ def build_targets(
                             pull=pull,
                             cache=cache,
                             platforms=platforms,
-                            metadata_file=True if metadata_file else False,
+                            metadata_file=True if metadata_file else None,
                         ),
                         retry=retry,
                         label=str(target),