Update AceStream, Python, and Ubuntu versions (#21)

Dockerfile

@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ubuntu:18.04
+FROM ubuntu:22.04
 
 LABEL \
     maintainer="Martin Bjeldbak Madsen <[email protected]>" \
@@ -10,14 +10,14 @@ LABEL \
     org.opencontainers.image.url="https://github.com/martinbjeldbak/acestream-http-proxy" \
     org.opencontainers.image.vendor="https://martinbjeldbak.com"
 
-ENV ACESTREAM_VERSION="3.1.75rc4_ubuntu_18.04_x86_64_py3.8"
+ENV ACESTREAM_VERSION="3.2.3_ubuntu_22.04_x86_64_py3.10"
 
 SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 
 # Install acestream dependencies
 RUN apt-get update \
   && apt-get install --no-install-recommends -y \
-      python3.8 ca-certificates wget sudo \
+      python3.10 ca-certificates wget sudo \
   && rm -rf /var/lib/apt/lists/* \
   #
   # Download acestream