Fixes for multiple handlers

docker/Dockerfile.aarch64

@@ -1,5 +1,5 @@
 # Build a project
-FROM mcr.microsoft.com/dotnet/sdk:3.1.416-bullseye-arm64v8 AS build
+FROM mcr.microsoft.com/dotnet/sdk:5.0.404-buster-slim-arm64v8 AS build
 WORKDIR /source
 
 # Copy project and perform restoring
@@ -20,7 +20,7 @@ RUN dotnet publish -c release -o /app --no-restore Kruzya.TelegramBot.sln && \
 	rm -f /app/TelegramBot.*.{dll,pdb,json}
 
 # Now reuse image with only runtime
-FROM mcr.microsoft.com/dotnet/aspnet:3.1.22-alpine3.14-arm64v8
+FROM mcr.microsoft.com/dotnet/aspnet:5.0.13-alpine3.14-arm64v8
 WORKDIR /user
 COPY --from=build /app /app
 ENTRYPOINT ["dotnet", "/app/TelegramBot.dll"]