Update dependency flatbuffers to v2.0.7

Author: renovate[bot]

requirements.txt

@@ -103,7 +103,7 @@ fin-news==0.1.1
 Flask==2.0.2
 Flask-RESTful==0.3.9
 Flask-Simple-GeoIP==0.2.4
-flatbuffers==2.0
+flatbuffers==2.0.7
 fonttools==4.28.2
 frozenlist==1.2.0
 furl==2.1.3