Rename gc to ncbi.gc

This rename is permissible because the only place that `gc` is used is in the NCBITaxon RDF->OBO converter, in an ad-hoc way.

src/bioregistry/data/bioregistry.json

@@ -42547,27 +42547,6 @@
       "uri_format": "https://www.gbif.org/species/$1"
     }
   },
-  "gc": {
-    "comment": "see comment here: https://github.com/obophenotype/ncbitaxon/issues/47",
-    "contributor": {
-      "email": "[email protected]",
-      "github": "cthoyt",
-      "name": "Charles Tapley Hoyt",
-      "orcid": "0000-0003-4423-4370"
-    },
-    "description": "Genetic code, mitochontrial genetic code, and other linked information to NCBI taxonomy entries.",
-    "example": "11",
-    "homepage": "https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html",
-    "name": "Genetic Code",
-    "pattern": "^\\d+$",
-    "references": [
-      "https://github.com/obophenotype/ncbitaxon/issues/47"
-    ],
-    "synonyms": [
-      "gc_id"
-    ],
-    "uri_format": "https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html/index.cgi?chapter=cgencodes#SG$1"
-  },
   "gcst": {
     "mappings": {
       "miriam": "gcst",
@@ -75458,6 +75437,28 @@
       }
     }
   },
+  "ncbi.gc": {
+    "comment": "see comment here: https://github.com/obophenotype/ncbitaxon/issues/47",
+    "contributor": {
+      "email": "[email protected]",
+      "github": "cthoyt",
+      "name": "Charles Tapley Hoyt",
+      "orcid": "0000-0003-4423-4370"
+    },
+    "description": "Genetic code, mitochontrial genetic code, and other linked information to NCBI taxonomy entries.",
+    "example": "11",
+    "homepage": "https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html",
+    "name": "Genetic Code",
+    "pattern": "^\\d+$",
+    "references": [
+      "https://github.com/obophenotype/ncbitaxon/issues/47"
+    ],
+    "synonyms": [
+      "gc",
+      "gc_id"
+    ],
+    "uri_format": "https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html/index.cgi?chapter=cgencodes#SG$1"
+  },
   "ncbi.genome": {
     "biocontext": {
       "prefix": "NCBIGenome",