migrate to jq for version extraction

Author: ahze

Containerfile

@@ -3,7 +3,7 @@ FROM ghcr.io/daemonless/base:${BASE_VERSION}
 
 ARG FREEBSD_ARCH=amd64
 ARG UPSTREAM_URL="https://plex.tv/api/downloads/5.json"
-ARG UPSTREAM_SED="s/.*\"FreeBSD\":{[^}]*\"version\":\"\\([^\"]*\\)\".*/\\1/p"
+ARG UPSTREAM_JQ=".computer.FreeBSD.version"
 
 LABEL org.opencontainers.image.title="Plex Media Server" \
     org.opencontainers.image.description="Plex Media Server on FreeBSD" \
@@ -17,7 +17,7 @@ LABEL org.opencontainers.image.title="Plex Media Server" \
     io.daemonless.arch="${FREEBSD_ARCH}" \
     io.daemonless.category="Media Servers" \
     io.daemonless.upstream-url="${UPSTREAM_URL}" \
-    io.daemonless.upstream-sed="${UPSTREAM_SED}"
+    io.daemonless.upstream-jq="${UPSTREAM_JQ}"
 
 # VERSION options:
 #   container - use baked version, no updates (default)