fix(matter): examples must set pin to Digital Mode after analogWrite() and before digitalWrite()

[SuGlider]

Description of Change

When no RGB LED is used, a regular LED is used, in the examples, to demonstrate Light Brightness or the Fan Motor Power.

The regular LED is driven with analogWrite() and set OFF with digitalWrite(pin, LOW). In order to set it OFF, it is necessary to set the pin to Digital Mode OUTPUT, otherwise an error will be displayed in the UART console.

Tests scenarios

Using ESP32.

None

[github-actions]

	Warnings
⚠️	The source branch "fix/matter_examples_digitalWrite" incorrect format: contains uppercase letters. This can cause troubles on case-insensitive file systems (macOS). Please rename your branch.

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[SuGlider]

Wow, @P-R-O-C-H-Y, --- That was really FAST!!!! 🥇

[github-actions]

Memory usage test (comparing PR against master branch)

The table below shows the summary of memory usage change (decrease - increase) in bytes and percentage for each target.

Memory	FLASH [bytes]		FLASH [%]		RAM [bytes]		RAM [%]
Target	DEC	INC	DEC	INC	DEC	INC	DEC	INC
ESP32S3	0	⚠️ +480	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32S2	0	⚠️ +484	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32C3	0	⚠️ +514	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32C6	0	⚠️ +538	0.00	⚠️ +0.03	0	0	0.00	0.00
ESP32	0	⚠️ +536	0.00	⚠️ +0.03	0	0	0.00	0.00

Click to expand the detailed deltas report [usage change in BYTES]

Target	ESP32S3		ESP32S2		ESP32C3		ESP32C6		ESP32
Example	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM	FLASH	RAM
Matter/examples/MatterColorLight	⚠️ +444	0	⚠️ +456	0	⚠️ +510	0	⚠️ +532	0	⚠️ +520	0
Matter/examples/MatterDimmableLight	⚠️ +480	0	⚠️ +484	0	⚠️ +510	0	⚠️ +532	0	⚠️ +508	0
Matter/examples/MatterEnhancedColorLight	⚠️ +460	0	⚠️ +476	0	⚠️ +514	0	⚠️ +538	0	⚠️ +516	0
Matter/examples/MatterFan	⚠️ +476	0	⚠️ +480	0	⚠️ +512	0	⚠️ +534	0	⚠️ +536	0
Matter/examples/MatterTemperatureLight	⚠️ +464	0	⚠️ +484	0	⚠️ +512	0	⚠️ +534	0	⚠️ +480	0