bugfix: libcharm build for charm4py should use CMK_SHARED_SUF #59

Job	Run time
changa_netlrts-linux-x86_64	6m 8s
cuda_netlrts-linux-x86_64_buildonly	10m 53s
buildold_netlrts-linux-x86_64	17m 16s
charm4py_netlrts-linux-x86_64_tcp	4m 36s
doc	45s
mpi-linux-x86_64	1h 15m 42s
mpi-linux-x86_64_syncft	13m 7s
multicore-darwin-x86_64_projections	17m 5s
netlrts-darwin-x86_64	31m 14s
netlrts-linux-i386	17m 40s
namd_netlrts-linux-x86_64	9m 15s
netlrts-linux-x86_64	15m 48s
netlrts-linux-x86_64_smp	25m 2s
shellcheck	5s
netlrts-linux-x86_64_syncft	11m 40s
spack_ubuntu-latest	19m 11s
spack_macos-latest	19m 11s
netlrts-win-x86_64_mingw64	19m 15s
ucx-linux-x86_64_openpmix	17m 12s
verbs-linux-x86_64_smp	16m 15s
	5h 47m 20s

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