[9.2] [Osquery] Fix pack and saved query APIs returning 500 instead of 404 for "not found" errors (#258883)#259703

csr merged 2 commits intoelastic:9.2elastic/kibana:9.2from

csr:backport/9.2/pr-258883csr/kibana:backport/9.2/pr-258883Copy head branch name to clipboard