Bump Microsoft.AspNetCore.AzureAppServices.HostingStartup

Bumps [Microsoft.AspNetCore.AzureAppServices.HostingStartup](https://github.com/aspnet/AspNetCore) from 3.1.6 to 3.1.7.
- [Release notes](https://github.com/aspnet/AspNetCore/releases)
- [Commits](dotnet/aspnetcore@v3.1.6...v3.1.7)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

src/SignService/SignService.csproj

@@ -71,7 +71,7 @@
     <PackageReference Include="Microsoft.ApplicationInsights.SnapshotCollector" Version="1.3.7" />
     <PackageReference Include="Microsoft.AspNetCore.ApplicationInsights.HostingStartup" Version="2.2.0" />
 	  <PackageReference Include="Microsoft.AspNetCore.Authentication.AzureAD.UI" Version="3.1.7" />
-    <PackageReference Include="Microsoft.AspNetCore.AzureAppServices.HostingStartup" Version="3.1.6" />    
+    <PackageReference Include="Microsoft.AspNetCore.AzureAppServices.HostingStartup" Version="3.1.7" />    
     <PackageReference Include="Microsoft.Azure.ActiveDirectory.GraphClient" Version="2.1.1" NoWarn="NU1701" />
     <PackageReference Include="Microsoft.Azure.Management.ResourceManager" Version="2.4.0-preview" />
     <PackageReference Include="Microsoft.Data.Services.Client" Version="5.8.4" />