Bump Microsoft.Rest.ClientRuntime in /Demo/keyvaultdemo/mykeyvault

Bumps [Microsoft.Rest.ClientRuntime](https://github.com/Azure/azure-sdk-for-net) from 2.3.18 to 2.3.24.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](https://github.com/Azure/azure-sdk-for-net/commits/Microsoft.Rest.ClientRuntime_2.3.24)

---
updated-dependencies:
- dependency-name: Microsoft.Rest.ClientRuntime
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Demo/keyvaultdemo/mykeyvault/packages.config

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Hyak.Common" version="1.2.2" targetFramework="net461" />
   <package id="Microsoft.Azure.Common" version="2.2.1" targetFramework="net461" />
@@ -15,7 +15,7 @@
   <package id="Microsoft.Data.Services.Client" version="5.8.4" targetFramework="net461" />
   <package id="Microsoft.IdentityModel.Clients.ActiveDirectory" version="4.5.0" targetFramework="net461" />
   <package id="Microsoft.Net.Http" version="2.2.29" targetFramework="net461" />
-  <package id="Microsoft.Rest.ClientRuntime" version="2.3.18" targetFramework="net461" />
+  <package id="Microsoft.Rest.ClientRuntime" version="2.3.24" targetFramework="net461" />
   <package id="Microsoft.Rest.ClientRuntime.Azure" version="3.3.18" targetFramework="net461" />
   <package id="Microsoft.Win32.Primitives" version="4.3.0" targetFramework="net461" />
   <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net461" />