chore: add workflow for deploying bot

src/StevesBot.Worker/.dockerignore

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+**/.dockerignore
+**/.env
+**/.project
+**/.settings
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/logs
+**/bin
+**/Dockerfile*
+**/obj
+.env*
+**/appsettings*.json

src/StevesBot.Worker/Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS base
+WORKDIR /app
+COPY *.csproj ./
+RUN dotnet restore
+COPY . .
+
+FROM base AS publish-stage
+RUN dotnet publish -c Release -o dist
+
+FROM mcr.microsoft.com/dotnet/runtime:9.0
+WORKDIR /app
+COPY --from=publish-stage /app/dist ./
+ENTRYPOINT ["dotnet", "StevesBot.Worker.dll"]