scenetime: correct MR

0.3 is their global MR, "Scenetime is a ratio-based tracker which means you need to seed back whatever you grab from the site, either to a 1:1 ratio or 72 hours. So, this means if you grab a 1 gig file, you need to keep it seeding/running in your client until either you have seeded to someone else 1.0 gigs or for 72 hours total."
https://www.scenetime.com/forums.php?action=viewtopic&subforum=12&topicid=11043

src/Jackett.Common/Indexers/SceneTime.cs

@@ -167,7 +167,7 @@ private List<ReleaseInfo> ParseResponse(TorznabQuery query, string htmlResponse)
                 {
                     // TODO convert to initializer
                     var release = new ReleaseInfo();
-                    release.MinimumRatio = 0.31;
+                    release.MinimumRatio = 1;
                     release.MinimumSeedTime = 259200; // 72 hours
 
                     var qCatLink = row.Children[categoryIndex].QuerySelector("a");