[devops] Fix nightly CodeQL run. (#24107)

Author: rolfbjarne

tools/devops/automation/run-nightly-codeql.yml

@@ -62,6 +62,7 @@ stages:
         xqaCertPass: $(xqa--certificates--password)
         use1ES: false
         disableCodeQL: false
+        xcodeChannel: $(xcodeChannel)
         buildSteps:
         - bash: $(Build.SourcesDirectory)/$(BUILD_REPOSITORY_TITLE)/tools/devops/automation/scripts/bash/build-nugets.sh
           displayName: 'Build Nugets'