Pass timezone through to the VM

What a way to discover that this was missing- PipeWire camera was
freezing unless something on the host was already streaming it…

gstclock.c:1086:gst_clock_get_internal_time:<pipewireclock0> internal time 1:01:04.622699903
gstclock.c:1129:gst_clock_get_time:<pipewireclock0> adjusted time 5123776:20:12.866176008

Well, that wasn't even caused by the TZ but it made me think to fix it..

NOTE for local dev, rebuild micro-activate now

munix

@@ -223,6 +223,7 @@ bwrap --unshare-all --share-net \
   --symlink "$MICROVM_CLOSURE" /run/current-system \
   --ro-bind /nix/store /nix/store \
   --file 13 /run/resolv.conf \
+  --file 14 /run/localtime \
   --dir "$XDG_RUNTIME_DIR" \
   --setenv PATH "/run/munix/muvm:/run/munix/passt:$MICROVM_CLOSURE/sw/bin" \
   "${BWRAP_ARGS[@]}" \
@@ -233,4 +234,5 @@ bwrap --unshare-all --share-net \
     -e MICROVM_CLOSURE="$MICROVM_CLOSURE" \
     -e MICROVM_UID="$MICROVM_UID" -e MICROVM_GID="$MICROVM_GID" \
     -i -t -- "${MICROVM_COMMAND[@]}" \
-  13< /etc/resolv.conf
+  13< /etc/resolv.conf \
+  14< /etc/localtime