updated RuntimeIdMap to match the Libgit2Sharp.Native

Author: arturcic

src/GitVersionTask.MsBuild/scripts/RuntimeIdMap.cs

@@ -149,12 +149,12 @@ internal static partial class RuntimeIdMap
         private static readonly string[] SDirectories = new[]
         {
             "alpine-x64",
+            "alpine.3.9-x64",
+            "alpine.3.9-x64",
             "alpine-x64",
             "alpine-x64",
             "alpine-x64",
-            "alpine-x64",
-            "alpine-x64",
-            "alpine-x64",
+            "alpine.3.9-x64",
             "linux-x64",
             "linux-x64",
             "linux-x64",
@@ -196,9 +196,9 @@ internal static partial class RuntimeIdMap
             "linux-x64",
             "linux-x64",
             "linux-x64",
-            "linux-x64",
-            "linux-x64",
-            "linux-x64",
+            "ubuntu.18.04-x64",
+            "ubuntu.18.04-x64",
+            "ubuntu.18.04-x64",
             "rhel-x64",
             "rhel-x64",
             "rhel-x64",
@@ -261,7 +261,7 @@ internal static partial class RuntimeIdMap
             "linux-x64",
             "linux-x64",
             "linux-x64",
-            "linux-x64",
+            "ubuntu.18.04-x64",
             "linux-x64",
             "linux-x64",
             "linux-x64",

src/GitVersionTask.MsBuild/scripts/RuntimeIdMapGenerator.csx

@@ -14,11 +14,13 @@ using Newtonsoft.Json.Linq;
 var availableRids = new[]
 {
     "alpine-x64",
+    "alpine.3.9-x64",
     "debian.9-x64",
     "fedora-x64",
     "linux-x64",
     "osx",
     "rhel-x64",
+    "ubuntu.18.04-x64",
     "win-x64",
     "win-x86",
 };