CI: add arm64 builds #651

Job	Run time
CI (fedora, gmxpkg)	2m 36s
CI (fedora, rawhide, TAG=rawhide,PYTHON=python3.13, true)	2m 33s
CI (ubuntu, latest)	2m 8s
CI (ubuntu, intel, TAG=22.04,INTEL=yes, true)	4m 16s
CI (ubuntu, rolling, TAG=rolling)	3m 54s
CI (ubuntu, devel, TAG=devel, true)	2m 34s
CI (opensuse, latest, true)	3m 39s
CI (fedora, latest, GMX_BRANCH=release-2019,GMX_DOUBLE=ON)	6m 40s
CI (fedora, latest, GMX_BRANCH=release-2019,GMX_DOUBLE=ON, true)	6m 35s
CI (fedora, gmx2019, GMX_BRANCH=release-2019)	6m 35s
CI (fedora, gmx2024_d, GMX_BRANCH=release-2024,GMX_DOUBLE=ON)	6m 41s
CI (fedora, gmx2024, GMX_BRANCH=release-2024)	6m 41s
CI (fedora, gmx9999_d, GMX_BRANCH=main,GMX_DOUBLE=ON, true)	6m 42s
CI (fedora, gmx9999, GMX_BRANCH=main, true)	6m 40s
CI (fedora, nogmx, GMX_BRANCH=none)	2m 12s
CI (fedora, intel, TAG=38,INTEL=yes,PYTHON=python3.11, true)	6m 42s
CI (actions, latest)	24s
CI (format, latest)	1m 35s
	1h 19m 7s

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