chore(docker): upgrade .NET version to 9.0

- Updated the base image in Dockerfile from .NET 7.0 to .NET 9.0.
- Changed the versioning in GitHub Actions workflow to reflect the new .NET version.

No breaking changes introduced.

Author: winromulus

.github/workflows/pipeline.yaml

@@ -11,7 +11,7 @@ on:
       - ".github/workflows/**"
 
 env:
-  version: 7.1.${{github.run_number}}
+  version: 9.0.${{github.run_number}}
   imageRepository: "emberstack/kubernetes-reflector"
   DOCKER_CLI_EXPERIMENTAL: "enabled"
 

src/ES.Kubernetes.Reflector/Dockerfile

@@ -1,8 +1,8 @@
-FROM mcr.microsoft.com/dotnet/aspnet:7.0-bookworm-slim AS base
+FROM mcr.microsoft.com/dotnet/aspnet:9.0-bookworm-slim AS base
 WORKDIR /app
 EXPOSE 25080
 
-FROM mcr.microsoft.com/dotnet/sdk:7.0-bookworm-slim-amd64 AS build
+FROM mcr.microsoft.com/dotnet/sdk:9.0-bookworm-slim-amd64 AS build
 WORKDIR /src
 COPY ["ES.Kubernetes.Reflector/ES.Kubernetes.Reflector.csproj", "ES.Kubernetes.Reflector/"]
 RUN dotnet restore "ES.Kubernetes.Reflector/ES.Kubernetes.Reflector.csproj"