dirauth: New v3 identity key for moria1

We are rotating moria1's key due to a break-in few weeks ago. See tor#40722 (closed) for more details.

The original MR for C-tor (tor.git) done by Roger Dingledine, moria1's operator, is here: tor!662 (merged)

Signed-off-by: David Goulet dgoulet@torproject.org