Fixed error with not actually using the highest audio channel in the …

…final creation of the channel map.

scripts/ffmpeg_automator.py

@@ -41,6 +41,11 @@ def get_audio_maps(streams):  # noqa: WPS231
                         audio_map.append('0:a:{0}'.format(str(index)))
                         lang_found.append(language)
 
+# If using highest channels, build the audio map from the highest channel dictionary
+    if use_highest_channels:
+        for lang, stream_info in highest_channels_per_lang.items():
+            audio_map.append(f'0:a:{stream_info["index"]}')
+
     if not audio_map:
         sys.stdout.write('No audio tracks found for given languages: {0}\n'.format(str(audio_languages)))
         sys.stdout.write('Ignoring audio track languages\n')