Fix installation of shared library symlink #146

Job	Run time
build-native-gcc	3m 15s
build-native-llvm	4m 3s
test-native-gcc	8m 38s
build-aarch64-gcc	8m 0s
test-native-llvm	7m 29s
build-aarch64-llvm	5m 9s
build-armhf-gcc	2m 41s
build-armhf-llvm	2m 58s
build-ppc64el-gcc	2m 59s
build-ppc64el-llvm	5m 5s
build-s390x-gcc	5m 9s
build-s390x-llvm	5m 55s
build-riscv64-llvm	3m 6s
test-aarch64-gcc (qemu_cpu: "max,sve=off")	19m 39s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve128=on")	24m 34s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve256=on")	28m 15s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve512=on")	28m 57s
test-aarch64-llvm (qemu_cpu: "max,sve=off")	16m 27s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve128=on")	22m 20s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve256=on")	26m 41s
test-aarch64-llvm (qemu_cpu: "max,sve=on,sve512=on")	31m 5s
test-armhf-gcc (qemu_cpu: "max")	16m 36s
test-armhf-llvm (qemu_cpu: "max")	13m 34s
test-ppc64el-gcc (qemu_cpu: "power10")	26m 54s
test-ppc64el-llvm (qemu_cpu: "power10")	26m 59s
test-s390x-gcc (qemu_cpu: "")	19m 36s
test-s390x-llvm (qemu_cpu: "")	20m 10s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=false")	14m 16s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=128,elen=64,vext_spec=v1.0")	29m 56s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=256,elen=64,vext_spec=v1.0")	41m 2s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=512,elen=64,vext_spec=v1.0")	58m 29s
	8h 49m 57s

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