Fix Docker for pyzmq #112

Job	Run time
bookworm armv7 / build	15m 52s
bullseye armv7 / build	14m 14s
bullseye armv7 / test (run_install_common.sh)	14m 37s
bullseye armv7 / test (run_install_faststartup.sh)	9m 25s
bullseye armv7 / test (run_install_webapp_local.sh)	15m 11s
bullseye armv7 / test (run_install_webapp_download.sh)	15m 32s
bullseye armv7 / test (run_install_libzmq_local.sh)	23m 23s
bookworm armv7 / test (run_install_common.sh)	14m 10s
bookworm armv7 / test (run_install_faststartup.sh)	9m 58s
bookworm armv7 / test (run_install_webapp_local.sh)	14m 3s
bookworm armv7 / test (run_install_webapp_download.sh)	14m 7s
bookworm armv7 / test (run_install_libzmq_local.sh)	24m 32s
bullseye armv7 / cleanup	2s
bookworm armv7 / cleanup	3s
	3h 5m 9s

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