Don't run compat tests in GitHub actions

Contention triggers the topic issue. If it breaks we can add it back and bug Lummox to try and figure out the cause of it.

tests/Tgstation.Server.Tests/Live/TestLiveServer.cs

@@ -1126,14 +1126,16 @@ namespace Tgstation.Server.Tests.Live
 								cancellationToken));
 
 					var compatTests = FailFast(
-						instanceTest
-							.RunCompatTests(
-								new Version(510, 1346),
-								adminClient.Instances.CreateClient(compatInstance),
-								compatDMPort,
-								compatDDPort,
-								server.HighPriorityDreamDaemon,
-								cancellationToken));
+						TestingUtils.RunningInGitHubActions
+							? Task.CompletedTask
+							: instanceTest
+								.RunCompatTests(
+									new Version(510, 1346),
+									adminClient.Instances.CreateClient(compatInstance),
+									compatDMPort,
+									compatDDPort,
+									server.HighPriorityDreamDaemon,
+									cancellationToken));
 
 					await Task.WhenAll(rootTest, adminTest, instancesTest, instanceTests, usersTest, compatTests);