update NEWS for 1.5 release #17

Job	Run time
test (aarch64, linux/arm64, gcc)	33s
test (x86, linux/386, gcc)	24s
test (x86, linux/386, clang)	22s
test (x86_64, linux/amd64, gcc)	27s
test (ppc64le, linux/ppc64le, clang)	1m 0s
test (ppc64le, linux/ppc64le, gcc)	40s
test (arm, linux/arm/v7, clang)	55s
test (s390x, linux/s390x, clang)	1m 19s
test (s390x, linux/s390x, gcc)	52s
test (aarch64, linux/arm64, clang)	1m 0s
test (riscv64, linux/riscv64, gcc)	1m 3s
test (arm, linux/arm/v7, gcc)	35s
test (loongarch64, linux/loong64, clang)	1m 31s
test (x86_64, linux/amd64, clang)	23s
test (riscv64, linux/riscv64, clang)	1m 7s
test (loongarch64, linux/loong64, gcc)	48s
	12m 59s

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