IWYU: Convert FAPI tests #135

Job	Run time
scanbuild	6m 41s
coverity-test	0s
build-test (ubuntu-20.04, gcc)	4m 44s
test-coverage	4h 54m 27s
build-test (ubuntu-20.04, clang)	4m 20s
test-fuzz	2m 31s
build-test (fedora-32, gcc)	4m 44s
test-mbedtls (ubuntu-20.04)	1m 57s
build-test (fedora-32, clang)	4m 56s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	1m 53s
test-no-crypto-build	1m 21s
build-test (opensuse-leap, gcc)	4m 35s
test-tcti-config	14m 16s
build-test (opensuse-leap, clang)	4m 45s
build-test (ubuntu-22.04, gcc)	4m 16s
build-test (ubuntu-22.04, clang)	4m 36s
build-test (alpine-3.15, gcc)	3m 57s
build-test (alpine-3.15, clang)	4m 48s
	6h 8m 47s

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