Fix invalid NEON instructions for armv6 Raspberry Pi's #102

Job	Run time
(MacOS x86_64) Build curl-impersonate and run the tests	5m 37s
(MacOS x86_64) Build curl-impersonate and run the tests	5m 42s
(Linux x86_64) Build curl-impersonate and run the tests	7m 9s
(Linux x86_64) Build curl-impersonate and run the tests	9m 14s
(MacOS arm64) Build curl-impersonate and run the tests	5m 33s
(MacOS arm64) Build curl-impersonate and run the tests	4m 30s
(Linux i386) Build curl-impersonate and run the tests	3m 58s
(Linux i386) Build curl-impersonate and run the tests	3m 39s
(Linux aarch64) Build curl-impersonate and run the tests	3m 29s
(Linux aarch64) Build curl-impersonate and run the tests	3m 38s
(Linux arm) Build curl-impersonate and run the tests	3m 38s
(Linux arm) Build curl-impersonate and run the tests	7m 57s
	1h 4m 4s

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