Update .NET diagnostic tools to 7.0.421201.

Author: alexrp

dotnet-tools.json

@@ -9,31 +9,31 @@
       ]
     },
     "dotnet-counters": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-counters"
       ]
     },
     "dotnet-dump": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-dump"
       ]
     },
     "dotnet-gcdump": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-gcdump"
       ]
     },
     "dotnet-sos": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-sos"
       ]
     },
     "dotnet-stack": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-stack"
       ]
@@ -45,7 +45,7 @@
       ]
     },
     "dotnet-trace": {
-      "version": "7.0.410101",
+      "version": "7.0.421201",
       "commands": [
         "dotnet-trace"
       ]