collectd: added head

Added a HEAD to the Collectd formula, and added a mirror, and updated
to SHA256 since Collectd only display SHA256 on their website download
page these days.

Closes #33200.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
libtorrent-rasterbar: website fix

A tad awkwardly, the owner of the rasterbar website seems to have
forgotten to renew their domain and it currently leads to an auction
domain. Consequently, have shoved the link over to SourceForge for now.

Closes #33199.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
dmd 2.066.0
dmd: update 2.066.0 bottle.