Merge pull request #234 from nickbabcock/dependabot/nuget/DotNet.Testcontainers-1.5.0

Bump DotNet.Testcontainers from 1.5.0-beta.20210415.1 to 1.5.0

OhmGraphite.Test/OhmGraphite.Test.csproj

@@ -6,7 +6,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="DotNet.Testcontainers" Version="1.5.0-beta.20210415.1" />
+    <PackageReference Include="DotNet.Testcontainers" Version="1.5.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.10.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />