arti-client: Rename KeyStore to Keystore.
KeyStore
was renamed to Keystore
globally in !1355 (merged). This fixes a
compile error caused an unfortunate series of non-conflicting (from
git's POV) but incompatible merges:
-
!1356 (merged) added a line threferencing an error variant that capitalizes the
"s" in "KeyStore" (
ErrorDetail::KeyStore
) -
!1356 (merged) landed just before !1355 (merged) (the global renaming). Since there was
no conflict between the 2, we're now in a state where the code added
in !1356 (merged) is referencing an
ErrorDetail
variant that no longer exists.