Bump dotnet/aspnet from 8.0 to 9.0 in /src/app/AlwaysOn.CatalogService

Bumps dotnet/aspnet from 8.0 to 9.0.

---
updated-dependencies:
- dependency-name: dotnet/aspnet
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

src/app/AlwaysOn.CatalogService/Dockerfile

@@ -5,7 +5,7 @@ COPY . ./
 RUN dotnet publish AlwaysOn.CatalogService -c Release -o AlwaysOn.CatalogService/out
 
 # Create application container
-FROM mcr.microsoft.com/dotnet/aspnet:8.0
+FROM mcr.microsoft.com/dotnet/aspnet:9.0
 # Update and upgrade
 RUN apt-get update && apt-get upgrade -y \
     && rm -rf /var/lib/apt/lists/*