regex sub fields are set to accept the updates (#4458) (#8439)

* regex sub fields are set to accept the updates

Signed-off-by: Modular Magician <magic-modules@google.com>

Author: modular-magician

.changelog/4458.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+dlp : modified `google_data_loss_prevention_stored_info_type` `regex.group_indexes` field to trigger resource recreation on update
+```

google/resource_data_loss_prevention_stored_info_type.go

@@ -224,6 +224,7 @@ Its syntax (https://github.com/google/re2/wiki/Syntax) can be found under the go
 						"group_indexes": {
 							Type:        schema.TypeList,
 							Optional:    true,
+							ForceNew:    true,
 							Description: `The index of the submatch to extract as findings. When not specified, the entire match is returned. No more than 3 may be included.`,
 							Elem: &schema.Schema{
 								Type: schema.TypeInt,