coretools update v4.7.3 (#3113)

Author: v-imohammad

src/Azure.Functions.Cli/Azure.Functions.Cli.csproj

@@ -159,7 +159,7 @@
     <PackageReference Include="Microsoft.ApplicationInsights" Version="2.20.0" />
     <PackageReference Include="Microsoft.AspNetCore.DataProtection" Version="2.2.0" />
     <PackageReference Include="Microsoft.Azure.DurableTask.AzureStorage.Internal" Version="1.4.0" />
-    <PackageReference Include="Microsoft.Azure.WebJobs.Script.WebHost" Version="4.7.2" />
+    <PackageReference Include="Microsoft.Azure.WebJobs.Script.WebHost" Version="4.7.3" />
     <PackageReference Include="Microsoft.Build" Version="17.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
     <PackageReference Include="WindowsAzure.Storage" Version="9.3.1" />