fix: allow invite codes for users with verified mails (#9962)

# Which Problems Are Solved

Users who started the invitation code verification, but haven't set up
any authentication method, need to be able to do so. This might require
a new invitation code, which was currently not possible since creation
was prevented for users with verified emails.

# How the Problems Are Solved

- Allow creation of invitation emails for users with verified emails.
- Merged the creation and resend into a single method, defaulting the
urlTemplate, applicatioName and authRequestID from the previous code (if
one exists). On the user service API, the `ResendInviteCode` endpoint
has been deprecated in favor of the `CreateInviteCode`

# Additional Changes

None

# Additional Context

- Noticed while investigating something internally.
- requires backport to 2.x and 3.x

(cherry picked from commit 833f6279e1)

internal/api/grpc/user/v2/integration_test/user_test.go

@@ -3174,6 +3174,33 @@ func TestServer_CreateInviteCode(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "recreate",
+			args: args{
+				ctx: CTX,
+				req: &user.CreateInviteCodeRequest{},
+				prepare: func(request *user.CreateInviteCodeRequest) error {
+					resp := Instance.CreateHumanUser(CTX)
+					request.UserId = resp.GetUserId()
+					_, err := Instance.Client.UserV2.CreateInviteCode(CTX, &user.CreateInviteCodeRequest{
+						UserId: resp.GetUserId(),
+						Verification: &user.CreateInviteCodeRequest_SendCode{
+							SendCode: &user.SendInviteCode{
+								UrlTemplate:     gu.Ptr("https://example.com/email/verify?userID={{.UserID}}&code={{.Code}}&orgID={{.OrgID}}"),
+								ApplicationName: gu.Ptr("TestApp"),
+							},
+						},
+					})
+					return err
+				},
+			},
+			want: &user.CreateInviteCodeResponse{
+				Details: &object.Details{
+					ChangeDate:    timestamppb.Now(),
+					ResourceOwner: Instance.DefaultOrg.Id,
+				},
+			},
+		},
 		{
 			name: "create, return code, ok",
 			args: args{