NO-JIRA: Fix CMake to avoid new policy warning
NO-JIRA: Fix CMake to avoid new policy warning

apache/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,prestona/qpid-proton,astitcher/qpid-proton,prestona/qpid-proton,alanconway/qpid-proton,alanconway/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,ssorj/qpid-proton,astitcher/qpid-proton,prestona/qpid-proton,ssorj/qpid-proton,astitcher/qpid-proton,gemmellr/qpid-proton-j,kgiusti/qpid-proton,astitcher/qpid-proton,ssorj/qpid-proton,apache/qpid-proton,prestona/qpid-proton,kgiusti/qpid-proton,ChugR/qpid-proton,prestona/qpid-proton,gemmellr/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,ChugR/qpid-proton,prestona/qpid-proton,alanconway/qpid-proton,prestona/qpid-proton,kgiusti/qpid-proton,apache/qpid-proton,gemmellr/qpid-proton-j,ssorj/qpid-proton,ChugR/qpid-proton,kgiusti/qpid-proton,alanconway/qpid-proton,ssorj/qpid-proton,alanconway/qpid-proton,prestona/qpid-proton,prestona/qpid-proton,alanconway/qpid-proton,apache/qpid-proton,astitcher/qpid-proton,ChugR/qpid-proton,kgiusti/qpid-proton,prestona/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,prestona/qpid-proton,kgiusti/qpid-proton,gemmellr/qpid-proton,prestona/qpid-proton