[nrf toup] Increase Matter stack size after update to Matter 1.5

Some samples require more stack after updating Matter to 1.5.
Increase the default value by 2kB.

Signed-off-by: Arkadiusz Balys <[email protected]>

Author: ArekBalysNordic

config/nrfconnect/chip-module/Kconfig

@@ -147,7 +147,7 @@ config CHIP_TASK_STACK_SIZE
 	int "The CHIP (Matter) thread stack size"
 	default 10240 if (LTO || PSA_CRYPTO_DRIVER_CC3XX)
 	default 9216 if PSA_CRYPTO_DRIVER_CRACEN
-	default 6144
+	default 8192
 	help
 	  Configures the stack size available for the CHIP (Matter) thread.