Fix pullup value for chamber thermistor #6
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The documentation claims that the TB thermistor uses a pullup resistor of 4.7 kOhm. This results a highly erroneous reading. Looking at the schematic, a 10kOhm resistor is actually used. Setting the pullup resistor to 10000 in Klipper indeed fixes this reading, so I conclude that this is a documentation error and the pullup should be 10kOhm.