r/aws_chime_voice_connector_group: handle NotFound error on delete

The delete operation calls an update when the `connector` argument is configured, which was not handling cases where the group did not exist (deleted out of band). This change prevents this error from propagating back to the user, and instead just removes the resource from state when the group cannot be found during the delete operation.

.changelog/36774.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+resource/aws_chime_voice_connector_group: Properly handle voice connector groups deleted out of band
+```

internal/service/chime/voice_connector_group.go

@@ -97,7 +97,7 @@ func resourceVoiceConnectorGroupRead(ctx context.Context, d *schema.ResourceData
 		resp, err = findVoiceConnectorGroupByID(ctx, conn, d.Id())
 	}
 
-	if !d.IsNewResource() && tfresource.NotFound(err) {
+	if !d.IsNewResource() && errs.IsA[*awstypes.NotFoundException](err) {
 		log.Printf("[WARN] Chime Voice conector group %s not found", d.Id())
 		d.SetId("")
 		return diags
@@ -147,6 +147,12 @@ func resourceVoiceConnectorGroupDelete(ctx context.Context, d *schema.ResourceDa
 	conn := meta.(*conns.AWSClient).ChimeSDKVoiceClient(ctx)
 
 	if v, ok := d.GetOk("connector"); ok && v.(*schema.Set).Len() > 0 {
+		// Exit before attempting connector updates if the group does not exist
+		_, err := findVoiceConnectorGroupByID(ctx, conn, d.Id())
+		if errs.IsA[*awstypes.NotFoundException](err) {
+			return diags
+		}
+
 		if err := resourceVoiceConnectorGroupUpdate(ctx, d, meta); err != nil {
 			return err
 		}

internal/service/chime/voice_connector_group_test.go

@@ -14,8 +14,8 @@ import (
 	"github.com/hashicorp/terraform-plugin-testing/terraform"
 	"github.com/hashicorp/terraform-provider-aws/internal/acctest"
 	"github.com/hashicorp/terraform-provider-aws/internal/conns"
+	"github.com/hashicorp/terraform-provider-aws/internal/errs"
 	tfchime "github.com/hashicorp/terraform-provider-aws/internal/service/chime"
-	"github.com/hashicorp/terraform-provider-aws/internal/tfresource"
 	"github.com/hashicorp/terraform-provider-aws/names"
 )
 
@@ -196,7 +196,7 @@ func testAccCheckVoiceConnectorGroupDestroy(ctx context.Context) resource.TestCh
 				return tfchime.FindVoiceConnectorGroupByID(ctx, conn, rs.Primary.ID)
 			})
 
-			if tfresource.NotFound(err) {
+			if errs.IsA[*awstypes.NotFoundException](err) {
 				continue
 			}