Relax BitTiming & BitTimingFd Validation #507

Job	Run time
static-code-analysis	40s
docs	1m 6s
format	26s
build	34s
test (ubuntu-latest, false, 3.8)	2m 45s
test (ubuntu-latest, false, 3.9)	2m 46s
test (ubuntu-latest, false, 3.10)	2m 53s
test (ubuntu-latest, false, 3.11)	2m 53s
test (ubuntu-latest, false, pypy-3.8)	3m 5s
test (ubuntu-latest, false, pypy-3.9)	3m 13s
test (macos-latest, false, 3.8)	2m 7s
test (macos-latest, false, 3.9)	1m 59s
test (macos-latest, false, 3.10)	2m 25s
test (macos-latest, false, 3.11)	4m 50s
test (macos-latest, false, pypy-3.8)	5m 5s
test (macos-latest, false, pypy-3.9)	5m 20s
test (windows-latest, false, 3.8)	2m 4s
test (windows-latest, false, 3.9)	3m 19s
test (windows-latest, false, 3.10)	1m 53s
test (windows-latest, false, 3.11)	4m 35s
test (windows-latest, false, pypy-3.8)	7m 3s
test (windows-latest, false, pypy-3.9)	9m 46s
test (ubuntu-latest, true, 3.12.0-alpha - 3.12.0)	3m 44s
upload_pypi	0s
coveralls	0s
	1h 14m 31s

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