update docker base image

.github/workflows/docker.yml

@@ -29,6 +29,6 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          platforms: linux/amd64,linux/arm64,linux/arm/v6,linux/arm/v7
+          platforms: linux/amd64,linux/arm64,linux/arm/v5,linux/arm/v7
           push: true
           tags: chriscn/pihole-to-influxdb:latest

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-slim-buster
+FROM python:3.9-slim-bullseye
 
 LABEL maintainer="Christopher Nethercott" \
     description="PiHole to InfluxDB data bridge"