upgrade tor package from v0.4.8.5-r0 to v0.4.8.6-r0 (fixes onion service reliability issue)

https://web.archive.org/web/20230923060831/https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes

https://git.alpinelinux.org/aports/commit/community/tor?h=3.18-stable&id=a4924d2d26cbb06f43521137691a9b1ed7ccf2f6

https://github.com/fphammerle/docker-tor-proxy/commit/9727958cc0c0ebea8b4aea2815c9f80aecaf8686

Dockerfile

@@ -3,8 +3,9 @@ FROM docker.io/alpine:3.18.3
 # https://git.alpinelinux.org/aports/log/main/gettext?h=3.18-stable
 ARG GETTEXT_PACKAGE_VERSION=0.21.1-r7
 # https://gitweb.torproject.org/tor.git/plain/ChangeLog
+# https://gitlab.torproject.org/tpo/core/tor/-/raw/release-0.4.8/ReleaseNotes
 # https://git.alpinelinux.org/aports/log/community/tor?h=3.18-stable
-ARG TOR_PACKAGE_VERSION=0.4.8.5-r0
+ARG TOR_PACKAGE_VERSION=0.4.8.6-r0
 RUN apk add --no-cache \
         tor=$TOR_PACKAGE_VERSION \
         gettext-envsubst=$GETTEXT_PACKAGE_VERSION \