Return package_uids in for_packages #444

    * This is so we are consistent with scancode-toolkit JSON output
    * Update expected test results

Signed-off-by: Jono Yang <jyang@nexb.com>

Author: JonoYang

CHANGELOG.rst

@@ -106,7 +106,7 @@ v31.0.0 (2022-08-25)
 - ``CodebaseResource.for_packages`` now returns a list of
   ``DiscoveredPackage.package_uid`` or ``DiscoveredPackage.package_url`` if
   ``DiscoveredPackage.package_uid`` is not present. This is done to reflect the
-  how scancode-toolkit's JSON output returns ``package_uid`` in the
+  how scancode-toolkit's JSON output returns ``package_uid``s in the
   ``for_packages`` field for Resources.
 
 v30.2.0 (2021-12-17)

scanpipe/tests/data/asgiref-3.3.0_load_inventory_expected.json

@@ -862,6 +862,7 @@
       "name": "WHEEL",
       "extension": "",
       "programming_language": "",
+      "mime_type": "text/plain",
       "is_binary": false,
       "is_text": true,
       "is_archive": false,
@@ -888,6 +889,7 @@
       "name": "top_level.txt",
       "extension": ".txt",
       "programming_language": "",
+      "mime_type": "text/plain",
       "is_binary": false,
       "is_text": true,
       "is_archive": false,
@@ -914,6 +916,7 @@
       "name": "__init__.py",
       "extension": ".py",
       "programming_language": "Python",
+      "mime_type": "text/plain",
       "is_binary": false,
       "is_text": true,
       "is_archive": false,
@@ -940,6 +943,7 @@
       "name": "compatibility.py",
       "extension": ".py",
       "programming_language": "Python",
+      "mime_type": "text/x-script.python",
       "is_binary": false,
       "is_text": true,
       "is_archive": false,
@@ -966,6 +970,7 @@
       "name": "current_thread_executor.py",
       "extension": ".py",
       "programming_language": "Python",
+      "mime_type": "text/x-script.python",
       "is_binary": false,
       "is_text": true,
       "is_archive": false,