json: Use functions to access json arrays. #3281

Job	Run time
dpdk gcc (ubuntu-24.04)	12s
libreswan (ubuntu-24.04)	8s
linux deb no dpdk	8m 24s
linux rpm fedora	4m 3s
build oss-fuzz fuzzers	3m 17s
osx clang --disable-ssl	1m 47s
clang-analyze-cache	15s
linux gcc --disable-ssl	2m 52s
linux clang --disable-ssl	2m 50s
linux gcc c99	2m 41s
linux clang c99	2m 32s
linux gcc test	8m 18s
linux clang address,undefined test	17m 30s
linux gcc test --enable-shared	11m 39s
linux clang test --enable-shared	11m 29s
linux gcc check check-dpdk dpdk	20m 28s
linux clang check check-dpdk dpdk	18m 46s
linux gcc test -ljemalloc	10m 32s
linux clang test -ljemalloc	8m 51s
linux gcc --enable-afxdp	3m 54s
linux clang --enable-afxdp	2m 47s
linux gcc dpdk --enable-shared	4m 53s
linux clang dpdk --enable-shared	3m 51s
linux gcc dpdk-shared	3m 20s
linux clang dpdk-shared	3m 4s
linux gcc dpdk-shared --enable-shared	5m 3s
linux clang dpdk-shared --enable-shared	3m 50s
linux gcc m32 --disable-ssl	2m 51s
linux gcc check-ovsdb-cluster	6m 57s
linux gcc check-kernel -100	10m 25s
linux gcc check-kernel 100-	17m 13s
linux clang address,undefined check-kernel -100	13m 3s
linux clang address,undefined check-kernel 100-	19m 26s
linux gcc check-offloads -100	9m 53s
linux gcc check-offloads 100-	12m 18s
linux gcc dpdk check-system-userspace	12m 31s
linux clang address,undefined dpdk check-system-userspace	16m 4s
linux gcc dpdk check-system-tso	12m 27s
linux gcc dpdk check-afxdp	13m 38s
clang-analyze	10m 30s
	5h 24m 32s

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