tests

fix Windows ARM64 build and detect ARM64EC as ARM64 #1074

Job	Run time
C Makefile tests	1m 39s
build with the Tiny C Compiler	8s
b3sum Linux GNU stable	39s
build for Apple Silicon	33s
b3sum Linux GNU beta	30s
cross i586-unknown-linux-musl	1m 30s
b3sum Linux GNU nightly	19s
CMake ubuntu-latest gcc	29s
cross i686-unknown-linux-musl	1m 43s
b3sum Linux GNU 1.74.1	56s
compile and test with GCC 5.4	1m 6s
CMake ubuntu-latest clang	17s
cross armv7-unknown-linux-gnueabihf	1m 37s
b3sum macOS stable	40s
CMake ubuntu-latest cl	14s
cross aarch64-unknown-linux-gnu	2m 18s
b3sum macOS beta	33s
CMake macOS-latest gcc	15s
cross powerpc64-unknown-linux-gnu	1m 26s
b3sum macOS nightly	37s
CMake macOS-latest clang	15s
cross s390x-unknown-linux-gnu	1m 53s
b3sum macOS 1.74.1	33s
CMake macOS-latest cl	11s
b3sum Windows MSVC stable	1m 45s
b3sum Windows MSVC beta	50s
CMake windows-latest clang	55s
b3sum Windows MSVC nightly	52s
CMake windows-latest cl	1m 4s
Linux GNU stable	2m 23s
b3sum Windows MSVC 1.74.1	52s
Linux GNU beta	2m 15s
b3sum Windows GNU stable	1m 1s
Linux GNU nightly	2m 11s
Miri smoketest	40s
b3sum Windows GNU beta	57s
Linux GNU 1.66.1	3m 35s
b3sum Windows GNU nightly	1m 8s
macOS stable	2m 59s
b3sum Windows GNU 1.74.1	59s
macOS beta	3m 2s
macOS nightly	3m 0s
macOS 1.66.1	10m 1s
Windows MSVC stable	5m 6s
Windows MSVC beta	4m 13s
Windows MSVC nightly	4m 4s
Windows MSVC 1.66.1	5m 27s
Windows GNU stable	4m 23s
Windows GNU beta	4m 27s
Windows GNU nightly	4m 40s
Windows GNU 1.66.1	6m 0s
	1h 39m 10s

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