DEV: Add `GeoList2-ASN.mmdb` and `.bundle` to `.gitignore` (#13902)

- `GeoList2-ASN.mmdb` is one of the MaxMind databases we use for geolocation
- `.bundle/` is created when you run something like `bundle config set --local ...`

.gitignore

@@ -4,6 +4,7 @@
 /log
 /tmp
 
+/.bundle
 /.env
 /.procfile
 /dump.rdb
@@ -46,6 +47,7 @@
 
 /vendor/bundle/*
 /vendor/data/GeoLite2-City.mmdb
+/vendor/data/GeoLite2-ASN.mmdb
 
 # Front-end
 dist