[Fix] Allow larger headers in API requests

- Some API calls require very long query strings and thus
  overrun the iuWSGI default 4k buffer sizes. Expand the buffer
  to handle these larger requests.

Change-Id: If61a6b4370452094cbbc2e5f5a88254d0a21c00b

entrypoint.sh

@@ -14,6 +14,7 @@ if [ "$1" = 'server' ]; then
         --harakiri "${UWSGI_TIMEOUT}" \
         --socket-timeout "${UWSGI_TIMEOUT}" \
         --harakiri-verbose \
+        -b 32768 \
         --lazy-apps \
         --master \
         --thunder-lock \