Bump the dotnet group with 3 updates (#4264)

Bumps Microsoft.AspNetCore.Hosting.Abstractions from 2.2.0 to 2.3.0
Bumps Microsoft.EntityFrameworkCore from 8.0.11 to 9.0.8
Bumps Npgsql.EntityFrameworkCore.PostgreSQL from 8.0.11 to 9.0.4

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Hosting.Abstractions
  dependency-version: 2.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dotnet
- dependency-name: Microsoft.EntityFrameworkCore
  dependency-version: 9.0.8
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dotnet
- dependency-name: Npgsql.EntityFrameworkCore.PostgreSQL
  dependency-version: 9.0.4
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dotnet
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/troubleshooting/snippets/hosting-startup-not-supported/hosting-startup-not-supported.csproj

@@ -10,9 +10,9 @@
 
   <ItemGroup>
     <FrameworkReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="2.2.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.11" />
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.11" />
+    <PackageReference Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="2.3.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.8" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
   </ItemGroup>
 
 </Project>