Add swap file adjustment for webapp build #182

Job	Run time
bullseye armv7 / build	3m 13s
bookworm armv7 / build	3m 26s
bullseye armv7 / test (run_install_common.sh)	13m 46s
bullseye armv7 / test (run_install_faststartup.sh)	10m 2s
bullseye armv7 / test (run_install_webapp_local.sh)	22m 18s
bullseye armv7 / test (run_install_webapp_download.sh)	15m 9s
bullseye armv7 / test (run_install_libzmq_local.sh)	23m 48s
bookworm armv7 / test (run_install_common.sh)	13m 30s
bookworm armv7 / test (run_install_faststartup.sh)	10m 15s
bookworm armv7 / test (run_install_webapp_local.sh)	21m 13s
bookworm armv7 / test (run_install_webapp_download.sh)	13m 3s
bookworm armv7 / test (run_install_libzmq_local.sh)	25m 12s
bullseye armv7 / cleanup	3s
bookworm armv7 / cleanup	3s
	2h 55m 1s

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