Use Python 3.

Headphones recently merged Python 3 support to the master branch,
breaking the existing images.

Update the Dockerfiles to use baseimage-alpine image and
update the services to use Python 3.

Dockerfile

@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-python:3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:3.15
 
 # set version label
 ARG BUILD_DATE
@@ -21,7 +21,9 @@ RUN \
  apk add --no-cache \
 	ffmpeg \
 	flac \
-	mc && \
+	git \
+	mc \
+	python3 && \
  echo "**** compile shntool *** *" && \
  mkdir -p \
 	/tmp/shntool && \

Dockerfile.aarch64

@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-python:arm64v8-3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.15
 
 # set version label
 ARG BUILD_DATE
@@ -21,7 +21,9 @@ RUN \
  apk add --no-cache \
 	ffmpeg \
 	flac \
-	mc && \
+	git \
+	mc \
+	python3 && \
  echo "**** compile shntool *** *" && \
  mkdir -p \
 	/tmp/shntool && \

Dockerfile.armhf

@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-python:arm32v7-3.11
+FROM ghcr.io/linuxserver/baseimage-alpine:arm32v7-3.15
 
 # set version label
 ARG BUILD_DATE
@@ -21,7 +21,9 @@ RUN \
  apk add --no-cache \
 	ffmpeg \
 	flac \
-	mc && \
+	git \
+	mc \
+	python3 && \
  echo "**** compile shntool *** *" && \
  mkdir -p \
 	/tmp/shntool && \

root/etc/services.d/headphones/run

@@ -1,5 +1,5 @@
 #!/usr/bin/with-contenv bash
 
 exec \
-	s6-setuidgid abc python /app/headphones/Headphones.py \
+	s6-setuidgid abc python3 /app/headphones/Headphones.py \
 	--datadir=/config