Update Zephyr to v3.6.0 #90

Job	Run time
build (ubuntu-latest, examples/mbed-rtos-blink-baremetal)	1m 11s
build (ubuntu-latest, examples/mbed-rtos-cellular)	2m 49s
build (ubuntu-latest, examples/mbed-rtos-ethernet-tls)	2m 38s
build (ubuntu-latest, examples/zephyr-blink)	3m 37s
build (ubuntu-latest, examples/zephyr-synchronization)	3m 53s
build (windows-latest, examples/mbed-rtos-blink-baremetal)	6m 11s
build (windows-latest, examples/mbed-rtos-cellular)	13m 38s
build (windows-latest, examples/mbed-rtos-ethernet-tls)	12m 42s
build (windows-latest, examples/zephyr-blink)	10m 32s
build (windows-latest, examples/zephyr-synchronization)	10m 57s
build (macos-latest, examples/mbed-rtos-blink-baremetal)	3m 5s
build (macos-latest, examples/mbed-rtos-cellular)	3m 10s
build (macos-latest, examples/mbed-rtos-ethernet-tls)	3m 27s
build (macos-latest, examples/zephyr-blink)	4m 56s
build (macos-latest, examples/zephyr-synchronization)	5m 34s
	1h 28m 20s

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