fix accesss_category enums

Author: vildead

schemas/elu-dataset.json

@@ -225,9 +225,9 @@
         "access_category": {
           "type": "string",
           "enum": [
-            "open-access",
-            "controlled-access",
-            "registered-access"
+            "open_access",
+            "controlled_access",
+            "registered_access"
           ]
         },
         "subjects_category": {

tests/data/datasets.json

@@ -15,7 +15,7 @@
                         "Whole_genome_sequencing"
                     ],
                     "data_type_notes": "Chip-seq  time series data",
-                    "access_category": "controlled-access",
+                    "access_category": "controlled_access",
                     "subjects_category": "controls",
                     "de_identification": "pseudonymization",
                     "source": "https://example.com",