Bump Arti to arti-v1.2.8 or arti-v1.2.9 #3
Description
Due to a hsservice-related issue, enabling onion-service-service IAW https://gitlab.torproject.org/tpo/core/arti/-/issues/1658#note_3089490 is required prior to the next release
OR
We can wait for 1.2.9 IAW with the comment above.