Bump Azure.Identity from 1.17.1 to 1.19.0

---
updated-dependencies:
- dependency-name: Azure.Identity
  dependency-version: 1.19.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

CentralMemoryMcp.Functions/CentralMemoryMcp.Functions.csproj

@@ -13,7 +13,7 @@
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Mcp" Version="1.1.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Storage" Version="6.8.0" />
     <PackageReference Include="Azure.Data.Tables" Version="12.11.0" />
-    <PackageReference Include="Azure.Identity" Version="1.17.1" />
+    <PackageReference Include="Azure.Identity" Version="1.19.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="2.0.7" />
   </ItemGroup>
 </Project>