Update to ruTorrent v4.3.7

# ruTorrent v4.3.7
This hotfix resolves a regression introduced in v4.1 with automatic updating of RSS feeds. It also contains minor translation corrections.

## What's Changed
* Fix automatic updating of RSS feeds by @stickz in Novik/ruTorrent@edb429c
* Minor PT-pt translation corrections by @Frias in Novik/ruTorrent#2693
* Update french by @Machou in Novik/ruTorrent#2702


**Full Changelog**: Novik/ruTorrent@v4.3.6...v4.3.7

Dockerfile

@@ -7,8 +7,8 @@ ARG XMLRPC_VERSION=01.58.00
 ARG MKTORRENT_VERSION=v1.1
 ARG GEOIP2_PHPEXT_VERSION=1.3.1
 
-# v4.3.6
-ARG RUTORRENT_VERSION=31c8d351002fb1bdcd71c0652aa516384d330712
+# v4.3.7
+ARG RUTORRENT_VERSION=c492260c8546047547a9af2a5ea0bac8da26f28d
 ARG GEOIP2_RUTORRENT_VERSION=4ff2bde530bb8eef13af84e4413cedea97eda148
 
 # v6.0-0.9.8-0.13.8