Bump actions/checkout from 5 to 6 #319

Job	Run time
linux (libertem_asi_tpx3)	2m 48s
linux (libertem_qd_mpx)	2m 47s
linux (libertem_dectris)	2m 52s
windows (libertem_dectris)	7m 22s
linux-test (libertem_dectris, stable)	1m 44s
windows-test (libertem_qd_mpx)	4m 45s
windows-test (libertem_asi_tpx3)	3m 41s
linux-test (libertem_dectris, 1.71)	2m 0s
windows-test (libertem_asi_mpx3)	5m 9s
linux-test (libertem_asi_mpx3, 1.71)	1m 28s
linux-test (ipc_test, 1.71)	44s
windows-test (ipc_test)	3m 26s
windows-test (libertem_dectris)	4m 57s
linux-test (libertem_asi_tpx3, 1.71)	1m 32s
linux-test (common, stable)	1m 40s
linux-test (libertem_asi_mpx3, stable)	1m 11s
linux-test (libertem_qd_mpx, 1.71)	1m 34s
linux-test (libertem_qd_mpx, stable)	1m 28s
linux-test (libertem_asi_tpx3, stable)	50s
windows (libertem_qd_mpx)	7m 56s
linux-test (ipc_test, stable)	43s
macos-test (libertem_dectris, macos-13)	2m 53s
windows-test (common)	3m 43s
linux-test (common, 1.71)	1m 27s
macos-test (libertem_asi_mpx3, macos-14)	2m 3s
macos-test (libertem_asi_tpx3, macos-14)	50s
macos (libertem_dectris, x86_64)	3m 52s
macos-test (libertem_qd_mpx, macos-13)	3m 17s
macos-test (libertem_asi_mpx3, macos-13)	2m 9s
macos-test (libertem_qd_mpx, macos-14)	1m 12s
windows (libertem_asi_tpx3)	4m 16s
macos-test (libertem_dectris, macos-14)	2m 41s
macos (libertem_dectris, aarch64)	2m 51s
macos (libertem_qd_mpx, x86_64)	2m 58s
macos (libertem_qd_mpx, aarch64)	2m 2s
macos (libertem_asi_tpx3, x86_64)	2m 46s
macos (libertem_asi_tpx3, aarch64)	1m 33s
macos-test (libertem_asi_tpx3, macos-13)	1m 26s
Release	-1s
	1h 42m 35s

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