Bump to v3.6.0-alpha #324

Job	Run time
bookworm armv7 / build	3m 6s
bullseye armv7 / build	3m 3s
bullseye armv7 / test (run_install_common.sh)	13m 40s
bullseye armv7 / test (run_install_faststartup.sh)	10m 34s
bullseye armv7 / test (run_install_webapp_local.sh)	21m 39s
bullseye armv7 / test (run_install_webapp_download.sh)	14m 46s
bullseye armv7 / test (run_install_libzmq_local.sh)	24m 0s
bookworm armv7 / test (run_install_common.sh)	14m 38s
bookworm armv7 / test (run_install_faststartup.sh)	10m 28s
bookworm armv7 / test (run_install_webapp_local.sh)	20m 32s
bookworm armv7 / test (run_install_webapp_download.sh)	13m 17s
bookworm armv7 / test (run_install_libzmq_local.sh)	24m 45s
bullseye armv7 / cleanup	2s
bookworm armv7 / cleanup	2s
	2h 54m 32s

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