### What this PR does / why we need it?
his PR fixes a typo in two function names in the
`epd_load_balance_proxy_layerwise_server_example.py` example script. The
function names `aquire_aborted_pd_requests` and
`aquire_aborted_prefiller_requests` were misspelled and have been
corrected to `acquire_aborted_pd_requests` and
`acquire_aborted_prefiller_requests` respectively. This improves code
readability and correctness.
Signed-off-by: Ronald1995 <ronaldautomobile@163.com>
