Sort nicMappings to have consistent data for ObjectHash

Currently the nicMappings data passed to the job spec
is not ordered and leads to different Object Hash
calculated and causes ovn-config job to be retriggered
and with higher number of nicMappings the job could
get triggered indefinitely.
Passing the ordered list fixes the issue.

Closes-Issue: OSPRH-7480

pkg/ovncontroller/utils.go

@@ -15,6 +15,7 @@ package ovncontroller
 import (
 	"context"
 	"fmt"
+	"sort"
 	"strings"
 
 	"github.com/openstack-k8s-operators/lib-common/modules/common/env"
@@ -31,9 +32,10 @@ func getPhysicalNetworks(
 	//               the same name as "br-<physical network>"
 	// NOTE(slaweq): interface names aren't important as inside Pod they will be
 	//               named based on the NicMappings keys
-	return strings.Join(
-		maps.Keys(instance.Spec.NicMappings), " ",
-	)
+	// Need to pass sorted data as Map is unordered
+	nicMappings := maps.Keys(instance.Spec.NicMappings)
+	sort.Strings(nicMappings)
+	return strings.Join(nicMappings, " ")
 }
 
 func getOVNControllerPods(