Update aarch64 docker image

Dockerfile.s6.aarch64

@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.17
+FROM ghcr.io/linuxserver/baseimage-alpine:arm64v8-3.20
 
 RUN apk --update add ca-certificates \
                      mailcap \

Dockerfile.s6.armhf

@@ -1,16 +0,0 @@
-FROM ghcr.io/linuxserver/baseimage-alpine:arm32v7-3.17
-
-RUN apk --update add ca-certificates \
-                     mailcap \
-                     curl
-
-HEALTHCHECK --start-period=2s --interval=5s --timeout=3s \
-  CMD curl -f http://localhost/health || exit 1
-
-# copy local files
-COPY docker/root/ /
-COPY filebrowser /usr/bin/filebrowser
-
-# ports and volumes
-VOLUME /srv /config /database
-EXPOSE 80