IWYU: Convert FAPI tests #129

Job	Run time
coverity-test	0s
test-coverage	3m 11s
scanbuild	6m 36s
build-test (ubuntu-20.04, gcc)	2m 56s
build-test (ubuntu-20.04, clang)	2m 45s
test-fuzz	2m 33s
build-test (fedora-32, gcc)	2m 47s
test-mbedtls (ubuntu-20.04)	1m 18s
build-test (fedora-32, clang)	2m 58s
test-no-crypto-build	1m 31s
test-mbedtls (ubuntu-22.04-mbedtls-3.1)	1m 18s
build-test (opensuse-leap, gcc)	2m 57s
test-tcti-config	2m 44s
build-test (opensuse-leap, clang)	2m 55s
build-test (ubuntu-22.04, gcc)	2m 55s
build-test (ubuntu-22.04, clang)	3m 0s
build-test (alpine-3.15, gcc)	2m 41s
build-test (alpine-3.15, clang)	2m 58s
	48m 3s

Provide feedback