Fix the invalid URL for data sheet in gdk101.rst (#3985)

components/sensor/gdk101.rst

@@ -119,7 +119,7 @@ See Also
 
 - :ref:`sensor-filters`
 - :apiref:`gdk101/gdk101.h`
-- `Data Sheet <http://allsmartlab.com/eng/wp-content/uploads/sites/2/2017/01/GDK101datasheet_v1.6.pdf>`__
+- `Data Sheet <https://www.eleparts.co.kr/data/goods_old/design/product_file/Hoon/AN_GDK101_V1.0_I2C.pdf>`__
 - `Application Notes <https://merona.blob.core.windows.net/radonftlab-web/GDK101.zip>`__
 - `Arduino Sensors for Everyone blog post <https://arduino.steamedu123.com/entry/GDK101-Radiation-Sensor>`__
 - :ghedit:`Edit`