Update Grpc.Core to 2.34.0, update version to 2.34.0. (#1144)

* Update Grpc.Core to 2.34.0

* Update version to v2.34.0

Author: jtattermusch

build/dependencies.props

@@ -3,7 +3,7 @@
     <BenchmarkDotNetPackageVersion>0.12.1</BenchmarkDotNetPackageVersion>
     <GoogleProtobufPackageVersion>3.14.0</GoogleProtobufPackageVersion>
     <GrpcDotNetPackageVersion>2.33.1</GrpcDotNetPackageVersion>  <!-- Used by example projects -->
-    <GrpcPackageVersion>2.34.0-pre1</GrpcPackageVersion>
+    <GrpcPackageVersion>2.34.0</GrpcPackageVersion>
     <MicrosoftAspNetCoreAppPackageVersion>5.0.0</MicrosoftAspNetCoreAppPackageVersion>
     <MicrosoftAspNetCoreApp31PackageVersion>3.1.3</MicrosoftAspNetCoreApp31PackageVersion>
     <MicrosoftBuildLocatorPackageVersion>1.2.2</MicrosoftBuildLocatorPackageVersion>

build/version.props

@@ -2,7 +2,7 @@
   <PropertyGroup>
 
     <!-- package version of grpc-dotnet -->
-    <GrpcDotnetVersion>2.34.0-pre1</GrpcDotnetVersion>
+    <GrpcDotnetVersion>2.34.0</GrpcDotnetVersion>
 
     <!-- assembly version of grpc-dotnet -->
     <GrpcDotnetAssemblyVersion>2.0.0.0</GrpcDotnetAssemblyVersion>