Set ASP.NET Core config webserver values (#3440)

/cc @sebastienros @mikeharder @dougbu

frameworks/CSharp/aspnetcore/benchmark_config.json

@@ -12,7 +12,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-linux",
@@ -30,7 +30,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-linux",
@@ -51,7 +51,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-middleware-raw",
@@ -72,7 +72,7 @@
       "orm": "Full",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-middleware-ef",
@@ -93,7 +93,7 @@
       "orm": "Micro",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-middleware-dapper",
@@ -111,7 +111,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-mvc-linux",
@@ -129,7 +129,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-mvc-linux",
@@ -150,7 +150,7 @@
       "orm": "Raw",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-mvc-raw",
@@ -171,7 +171,7 @@
       "orm": "Full",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-mvc-ef",
@@ -192,7 +192,7 @@
       "orm": "Micro",
       "platform": ".NET",
       "flavor": "CoreCLR",
-      "webserver": "None",
+      "webserver": "Kestrel",
       "os": "Linux",
       "database_os": "Linux",
       "display_name": "aspnetcore-mvc-dapper",