Bump System.Net.Http from 2.0.20710.0 to 4.3.4 in /CsharpLibs/CsharpLibs#1

dependabot[bot] wants to merge 1 commit intomasterdevgis/CSharpCodes:masterfrom

dependabot/nuget/CsharpLibs/CsharpLibs/System.Net.Http-4.3.4devgis/CSharpCodes:dependabot/nuget/CsharpLibs/CsharpLibs/System.Net.Http-4.3.4Copy head branch name to clipboard