enable Beta Management Policies

Use the upstream feature flag to enable the Beta Management Policy support.

fixes: #136

cmd/provider/main.go

@@ -49,7 +49,7 @@ func main() {
 		debug            = app.Flag("debug", "Run with debug logging.").Short('d').Bool()
 		syncInterval     = app.Flag("sync", "Sync interval controls how often all resources will be double checked for drift.").Short('s').Default("1h").Duration()
 		pollInterval     = app.Flag("poll", "Poll interval controls how often an individual resource should be checked for drift.").Default("1m").Duration()
-		leaderElection   = app.Flag("leader-election", "Use leader election for the conroller manager.").Short('l').Default("false").OverrideDefaultFromEnvar("LEADER_ELECTION").Bool()
+		leaderElection   = app.Flag("leader-election", "Use leader election for the conroller manager.").Short('l').Default("false").Envar("LEADER_ELECTION").Bool()
 		maxReconcileRate = app.Flag("max-reconcile-rate", "The global maximum rate per second at which resources may checked for drift from the desired state.").Default("10").Int()
 
 		namespace                  = app.Flag("namespace", "Namespace used to set as default scope in default secret store config.").Default("crossplane-system").Envar("POD_NAMESPACE").String()