Automated SDK update

This updates the SDK from internal repo commit segmentio/public-api@f9cd868c.

Author: APIs and Common Services team

Segment.PublicApi.sln

@@ -2,18 +2,18 @@
 # Visual Studio 2012
 VisualStudioVersion = 12.0.0.0
 MinimumVisualStudioVersion = 10.0.0.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Segment.PublicApi", "src\Segment.PublicApi\Segment.PublicApi.csproj", "{F7CAF0F8-2D3B-4A6D-AA38-9026A062F4B0}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Segment.PublicApi", "src\Segment.PublicApi\Segment.PublicApi.csproj", "{C5B7F1B4-5439-4713-9D3A-5E17ED267305}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Release|Any CPU = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{F7CAF0F8-2D3B-4A6D-AA38-9026A062F4B0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{F7CAF0F8-2D3B-4A6D-AA38-9026A062F4B0}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{F7CAF0F8-2D3B-4A6D-AA38-9026A062F4B0}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{F7CAF0F8-2D3B-4A6D-AA38-9026A062F4B0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C5B7F1B4-5439-4713-9D3A-5E17ED267305}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C5B7F1B4-5439-4713-9D3A-5E17ED267305}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C5B7F1B4-5439-4713-9D3A-5E17ED267305}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C5B7F1B4-5439-4713-9D3A-5E17ED267305}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE