Fix typo (#4820)

pull -> poll

Author: cvwillegen

components/sensor/smt100.rst

@@ -67,7 +67,7 @@ Configuration variables:
 - **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`UART Component <uart>` if you want
   to use multiple UART buses.
 
-- **update_interval** (*Optional*, :ref:`config-time`): The interval to pull the sensor. Defaults is 60s.
+- **update_interval** (*Optional*, :ref:`config-time`): The interval to poll the sensor. Defaults is 60s.
 
 See Also
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