unit tests: skip tests which fail on 32-bit with _FILE_BITS=64 #706

Job	Run time
coverity-test	0s
test-coverage	5m 9s
build-test (ubuntu-20.04, gcc)	4m 40s
scanbuild	6m 55s
build-test (ubuntu-20.04, clang)	4m 41s
test-fuzz	2m 42s
test-mbedtls (ubuntu-20.04)	2m 57s
build-test (fedora-32, gcc)	4m 47s
test-no-crypto-build	1m 37s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	3m 2s
build-test (fedora-32, clang)	5m 19s
test-tcti-config	14m 25s
build-test (opensuse-leap, gcc)	4m 43s
build-test (opensuse-leap, clang)	4m 59s
build-test (ubuntu-22.04, gcc)	4m 39s
build-test (ubuntu-22.04, clang)	4m 57s
build-test (alpine-3.15, gcc)	3m 57s
build-test (alpine-3.15, clang)	5m 2s
	1h 24m 31s

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