Switch from old to new MD5 API in tester3. (#489) #31

Job	Run time
build-native-gcc	5m 11s
build-native-llvm	5m 24s
test-native-gcc	7m 46s
build-aarch64-gcc	3m 47s
test-native-llvm	8m 13s
build-aarch64-llvm	4m 27s
build-armhf-gcc	4m 6s
build-armhf-llvm	1m 28s
build-ppc64el-gcc	2m 33s
build-ppc64el-llvm	6m 3s
build-s390x-gcc	3m 28s
build-s390x-llvm	2m 38s
build-riscv64-llvm	4m 39s
test-aarch64-gcc (qemu_cpu: "max,sve=off")	20m 21s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve128=on")	25m 53s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve256=on")	27m 39s
test-aarch64-gcc (qemu_cpu: "max,sve=on,sve512=on")	29m 28s
test-armhf-gcc (qemu_cpu: "max")	16m 59s
test-armhf-llvm (qemu_cpu: "max")	15m 48s
test-ppc64el-gcc (qemu_cpu: "power10")	26m 52s
test-ppc64el-llvm (qemu_cpu: "power10")	24m 6s
test-s390x-gcc (qemu_cpu: "")	20m 35s
test-s390x-llvm (qemu_cpu: "")	21m 38s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=false")	5m 7s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=128,elen=64,vext_spec=v1.0")	15m 14s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=256,elen=64,vext_spec=v1.0")	22m 12s
test-riscv64-llvm (qemu_cpu: "rv64,zba=true,zbb=true,zbs=true,v=true,vlen=512,elen=64,vext_spec=v1.0")	31m 13s
	6h 2m 48s

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