github: Skip clang-analyze when reference generation fails. #623

Job	Run time
dpdk gcc (ubuntu-24.04)	7s
linux rpm fedora	4m 29s
libreswan (ubuntu-24.04)	4s
build oss-fuzz fuzzers	2m 59s
osx clang --disable-ssl	1m 53s
linux deb ${{ matrix.dpdk }} dpdk	0s
clang-analyze-reference	4m 28s
linux gcc --disable-ssl	2m 42s
linux clang --disable-ssl	2m 32s
linux gcc c99	2m 55s
linux clang c99	2m 30s
linux gcc test	8m 33s
linux clang address,undefined test	15m 39s
linux gcc test --enable-shared	10m 50s
linux clang test --enable-shared	11m 21s
linux gcc check check-dpdk dpdk	1m 55s
linux clang check check-dpdk dpdk	1m 49s
linux gcc test -ljemalloc	9m 2s
linux clang test -ljemalloc	8m 49s
linux gcc --enable-afxdp	2m 53s
linux clang --enable-afxdp	2m 42s
linux gcc dpdk --enable-shared	2m 21s
linux clang dpdk --enable-shared	2m 10s
linux gcc dpdk-shared	1m 57s
linux clang dpdk-shared	1m 46s
linux gcc dpdk-shared --enable-shared	2m 24s
linux clang dpdk-shared --enable-shared	2m 3s
linux gcc dpdk-experimental	1m 52s
linux gcc m32 --disable-ssl	2m 45s
linux gcc check-ovsdb-cluster	7m 0s
linux gcc check-kernel -100	10m 25s
linux gcc check-kernel 100-	13m 45s
linux clang address,undefined check-kernel -100	13m 3s
linux clang address,undefined check-kernel 100-	15m 38s
linux gcc check-offloads -100	9m 33s
linux gcc check-offloads 100-	11m 21s
linux gcc dpdk check-system-userspace	1m 58s
linux clang address,undefined dpdk check-system-userspace	2m 7s
linux gcc dpdk check-system-tso	2m 8s
linux gcc dpdk check-afxdp	1m 53s
clang-analyze	0s
	3h 24m 21s

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