switch to SDRplay API v3.15 #1292

Job	Run time
build_windows	12m 59s
build_macos_arm	3m 42s
build_debian_bookworm	3m 29s
build_debian_bullseye	3m 6s
build_debian_sid	3m 24s
build_macos_intel	4m 42s
build_ubuntu_focal	3m 54s
build_debian_buster	2m 50s
build_ubuntu_jammy	3m 11s
build_android	11m 59s
build_raspios_bullseye_armhf	9m 5s
build_ubuntu_mantic	3m 35s
check_formatting	13s
build_ubuntu_noble	3m 49s
check_spelling	18s
create_full_archive	16s
update_nightly_release	15s
	1h 10m 47s

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