Merged PR 12347: [internal/release/3.1.4xx] Update dependencies from dnceng/internal/dotnet-sdk

This pull request updates the following dependencies

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## From https://dev.azure.com/dnceng/internal/_git/dotnet-sdk
- **Subscription**: c48f2d1f-0401-412a-c6c4-08d828f853f1
- **Build**: 20210121.12
- **Date Produced**: 1/21/2021 11:43 PM
- **Commit**: 15c548250b38e9a02d5e8d8b053052ac9bd708d9
- **Branch**: refs/heads/internal/release/3.1.4xx

[DependencyUpdate]: <> (Begin)

- **Updates**:
  - **Microsoft.NET.Sdk**: [from 3.1.405-servicing.20580.15 to 3.1.406-servicing.21071.12][1]

[1]: https://dev.azure.com/dnceng/internal/_git/dotnet-sdk/branches?baseVersion=GCb5d410f&targetVersion=GC15c5482&_a=files

[DependencyUpdate]: <> (End)

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Author: dotnet-bot

eng/Version.Details.xml

@@ -48,9 +48,9 @@
     </Dependency>
   </ToolsetDependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.NET.Sdk" Version="3.1.405-servicing.20580.15">
-      <Uri>https://github.com/dotnet/sdk</Uri>
-      <Sha>b5d410f5ac69660faecd467b57e0acdc71d7d2b7</Sha>
+    <Dependency Name="Microsoft.NET.Sdk" Version="3.1.406-servicing.21071.12">
+      <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-sdk</Uri>
+      <Sha>15c548250b38e9a02d5e8d8b053052ac9bd708d9</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NETCore.App.Internal" Version="3.1.12-servicing.21069.9">
       <Uri>https://dev.azure.com/dnceng/internal/_git/dotnet-core-setup</Uri>

eng/Versions.props

@@ -39,7 +39,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <!-- Dependencies from https://github.com/dotnet/sdk -->
-    <MicrosoftNETSdkPackageVersion>3.1.405-servicing.20580.15</MicrosoftNETSdkPackageVersion>
+    <MicrosoftNETSdkPackageVersion>3.1.406-servicing.21071.12</MicrosoftNETSdkPackageVersion>
     <MicrosoftNETBuildExtensionsPackageVersion>$(MicrosoftNETSdkPackageVersion)</MicrosoftNETBuildExtensionsPackageVersion>
   </PropertyGroup>
   <PropertyGroup>