fix: Ignore optional title links in tests

Pystac offers optional title field in link object (human-readable title to be used in rendered displays of the link). Removing normalized_href (put in place to solve #1818) causes tests to fail due to missing title.

tests/test_populate_catalog.py

@@ -277,6 +277,13 @@ def should_update_root_catalog_with_new_version_catalog(subtests: SubTests) -> N
             mode="rb",
         ) as updated_dataset_metadata_file:
             version_json = load(updated_dataset_metadata_file)
+            for index in range(len(version_json[STAC_LINKS_KEY])):
+                if "title" in version_json[STAC_LINKS_KEY][index]:
+                    expected_dataset_version_links[index]["title"] = version_json[STAC_LINKS_KEY][
+                        index
+                    ]["title"]
+                else:
+                    expected_dataset_version_links[index].pop("title")
             assert version_json[STAC_LINKS_KEY] == expected_dataset_version_links
 
 
@@ -422,6 +429,11 @@ def should_update_root_catalog_with_new_version_collection(subtests: SubTests) -
             mode="rb",
         ) as updated_item_metadata_file:
             item_json = load(updated_item_metadata_file)
+            for index in range(len(item_json[STAC_LINKS_KEY])):
+                if "title" in item_json[STAC_LINKS_KEY][index]:
+                    expected_item_links[index]["title"] = item_json[STAC_LINKS_KEY][index]["title"]
+                else:
+                    expected_item_links[index].pop("title")
             assert item_json[STAC_LINKS_KEY] == expected_item_links