Add swap file adjustment for webapp build #174

Job	Run time
bookworm armv7 / build	3m 18s
bullseye armv7 / build	4m 1s
bookworm armv7 / test (run_install_common.sh)	7m 23s
bookworm armv7 / test (run_install_faststartup.sh)	7m 24s
bookworm armv7 / test (run_install_webapp_local.sh)	7m 22s
bookworm armv7 / test (run_install_webapp_download.sh)	7m 24s
bookworm armv7 / test (run_install_libzmq_local.sh)	7m 25s
bullseye armv7 / test (run_install_common.sh)	6m 37s
bullseye armv7 / test (run_install_faststartup.sh)	6m 39s
bullseye armv7 / test (run_install_webapp_local.sh)	6m 40s
bullseye armv7 / test (run_install_webapp_download.sh)	6m 40s
bullseye armv7 / test (run_install_libzmq_local.sh)	6m 39s
bullseye armv7 / cleanup	3s
bookworm armv7 / cleanup	2s
	1h 17m 37s

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