Bump NetEscapades.AspNetCore.SecurityHeaders in /src

Bumps [NetEscapades.AspNetCore.SecurityHeaders](https://github.com/andrewlock/NetEscapades.AspNetCore.SecurityHeaders) from 0.18.0 to 0.19.0.
- [Changelog](https://github.com/andrewlock/NetEscapades.AspNetCore.SecurityHeaders/blob/master/CHANGELOG.md)
- [Commits](andrewlock/NetEscapades.AspNetCore.SecurityHeaders@v0.18.0...v0.19.0)

---
updated-dependencies:
- dependency-name: NetEscapades.AspNetCore.SecurityHeaders
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/AzureIoTHub.Portal.Server/AzureIoTHub.Portal.Server.csproj

@@ -66,7 +66,7 @@
     <PackageReference Include="Microsoft.Identity.Web" Version="2.11.1" />
     <PackageReference Include="Microsoft.Identity.Web.UI" Version="2.11.1" />
     <PackageReference Include="MudBlazor" Version="6.4.1" />
-    <PackageReference Include="NetEscapades.AspNetCore.SecurityHeaders" Version="0.18.0" />
+    <PackageReference Include="NetEscapades.AspNetCore.SecurityHeaders" Version="0.19.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="prometheus-net.AspNetCore" Version="8.0.0" />
     <PackageReference Include="Quartz" Version="3.6.2" />