ci: ovn-kubernetes: Move the fedora image version to 41. #3392

Job	Run time
osx clang --disable-ssl	2m 1s
linux rpm fedora	7m 2s
Prepare container	1m 0s
linux gcc --disable-ssl	2m 44s
linux clang --disable-ssl	2m 41s
linux gcc test -300	10m 8s
linux gcc test 301-600	7m 19s
linux gcc test 601- unstable	7m 16s
linux clang test sanitizers -300	13m 23s
linux clang test sanitizers 301-600	10m 27s
linux clang test sanitizers 601- unstable	12m 51s
linux gcc test -ljemalloc -300	10m 17s
linux gcc test -ljemalloc 301-600	7m 34s
linux gcc test -ljemalloc 601- unstable	7m 30s
linux gcc system-test-dpdk dpdk -100	1m 42s
linux gcc system-test-dpdk dpdk 101- unstable	1m 36s
linux gcc system-test-userspace -100	15m 38s
linux gcc system-test-userspace 101- unstable	15m 20s
linux gcc system-test -100	18m 7s
linux gcc system-test 101- unstable	20m 0s
linux clang system-test sanitizers -100	20m 44s
linux clang system-test sanitizers 101- unstable	22m 26s
linux x86 gcc --disable-ssl	2m 33s
	3h 40m 19s

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