README: remove lightweight

[ikonst]

  Downloading https://www.piwheels.org/simple/influxdb-client/influxdb_client-1.50.0-py3-none-any.whl (746 kB)
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Collecting influxdb3-python
  Downloading influxdb3_python-0.17.0-py3-none-any.whl.metadata (10 kB)
Requirement already satisfied: reactivex>=4.0.4 in ./lib/python3.13/site-packages (from influxdb3-python) (4.1.0)
Requirement already satisfied: certifi>=14.05.14 in ./lib/python3.13/site-packages (from influxdb3-python) (2026.1.4)
Requirement already satisfied: python_dateutil>=2.5.3 in ./lib/python3.13/site-packages (from influxdb3-python) (2.9.0.post0)
Requirement already satisfied: urllib3>=1.26.0 in ./lib/python3.13/site-packages (from influxdb3-python) (2.6.3)
Collecting pyarrow>=8.0.0 (from influxdb3-python)
  Downloading pyarrow-23.0.0-cp313-cp313-manylinux_2_28_aarch64.whl.metadata (3.0 kB)
Requirement already satisfied: six>=1.5 in ./lib/python3.13/site-packages (from python_dateutil>=2.5.3->influxdb3-python) (1.17.0)
Requirement already satisfied: typing-extensions<5.0.0,>=4.1.1 in ./lib/python3.13/site-packages (from reactivex>=4.0.4->influxdb3-python) (4.15.0)
Downloading influxdb3_python-0.17.0-py3-none-any.whl (94 kB)
Downloading pyarrow-23.0.0-cp313-cp313-manylinux_2_28_aarch64.whl (44.4 MB)
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Installing collected packages: pyarrow, influxdb3-python