Bump System.Collections.Immutable from 1.7.0 to 1.7.1

Bumps [System.Collections.Immutable](https://github.com/dotnet/corefx) from 1.7.0 to 1.7.1.
- [Release notes](https://github.com/dotnet/corefx/releases)
- [Commits](https://github.com/dotnet/corefx/commits)

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

Author: dependabot-preview[bot]

Core/Open.Database.Extensions.Core.csproj

@@ -43,7 +43,7 @@
 		  <PrivateAssets>all</PrivateAssets>
 		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>-->
-		<PackageReference Include="System.Collections.Immutable" Version="1.7.0" />
+		<PackageReference Include="System.Collections.Immutable" Version="1.7.1" />
 		<PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
 	    <PrivateAssets>all</PrivateAssets>
 	    <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>