fixup! APPS/load_key_certs_crls(): refactor to clean up the code a li… #1322

Job	Run time
compiler (gcc-7, ubuntu-20.04)	3m 55s
compiler (gcc-8, ubuntu-20.04)	4m 12s
compiler (gcc-9, ubuntu-20.04)	4m 23s
compiler (gcc-10, ubuntu-20.04)	4m 5s
compiler (gcc-11, ubuntu-22.04)	4m 4s
compiler (gcc-12, ubuntu-22.04)	4m 28s
compiler (gcc-13, ubuntu-22.04, ubuntu-toolchain-r/test)	4m 44s
compiler (clang-6.0, ubuntu-20.04)	4m 13s
compiler (clang-7, ubuntu-20.04)	4m 34s
compiler (clang-8, ubuntu-20.04)	4m 20s
compiler (clang-9, ubuntu-20.04)	4m 30s
compiler (clang-10, ubuntu-20.04)	4m 16s
compiler (clang-11, ubuntu-20.04)	4m 29s
compiler (clang-12, ubuntu-20.04)	4m 29s
compiler (clang-13, ubuntu-22.04)	4m 30s
compiler (clang-14, ubuntu-22.04)	4m 36s
compiler (clang-15, ubuntu-22.04, jammy)	4m 45s
compiler (clang-16, ubuntu-22.04, jammy)	4m 46s
compiler (clang-17, ubuntu-22.04, jammy)	4m 37s
	1h 23m 56s

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