Update the autonym of the Tigre language (tig) (#380)

Downstream task:
https://phabricator.wikimedia.org/T373741

Co-authored-by: SrishAkaTux <ssethi@wikimedia.org>

data/langdb.yaml

@@ -744,7 +744,7 @@ languages:
   tg-latn: [Latn, [AS], tojikī]
   th: [Thai, [AS], ไทย]
   ti: [Ethi, [AF], ትግርኛ]
-  tig: [Ethi, [AF], ትግረ]
+  tig: [Ethi, [AF], ትግሬ]
   tji: [Latn, [AS], bifzivsar]
   tk: [Latn, [AS], Türkmençe]
   tkr: [Cyrl, [AS], цӀаӀхна миз]

data/language-data.json

@@ -4710,7 +4710,7 @@
             [
                 "AF"
             ],
-            "ትግረ"
+            "ትግሬ"
         ],
         "tji": [
             "Latn",