fix(languages): update GitHub languages JSON file

Author: jaebradley

src/languages.json

@@ -2761,6 +2761,7 @@
       ".gbp",
       ".gbs",
       ".gko",
+      ".gml",
       ".gpb",
       ".gpt",
       ".gtl",
@@ -3034,7 +3035,8 @@
     "type": "data",
     "extensions": [
       ".graphql",
-      ".gql"
+      ".gql",
+      ".graphqls"
     ],
     "tmScope": "source.graphql",
     "aceMode": "text",