Update the machinery dependency to include the fix that ensures
RFC3339-like timestamps without timezone (e.g., "2024-01-15T10:30:00")
are interpreted as UTC.
The documentation has been updated to use a targetTime example with
an explicit Z suffix and to clarify that timestamps without timezone
are interpreted as UTC.
Closes#699
Signed-off-by: Marco Nenciarini <marco.nenciarini@enterprisedb.com>