[test][unit] The method of creating resources does not support setting project_ id

[ZhouHeng]

Some basic unit test classes in neutron， contain basic methods for creating resources, which are often referenced by other unit tests.
eg:
MeteringPluginDbTestCaseMixin.metering_label
MeteringPluginDbTestCaseMixin.metering_label_rule
NeutronDbPluginV2TestCase.network
NeutronDbPluginV2TestCase.subnet
NeutronDbPluginV2TestCase.subnetpool
NeutronDbPluginV2TestCase.port
AddressScopeTestCase.address_scope
L3NatExtensionTestCase.router

these methods only distinguish parameter "tenant_id", if the parameter "project_id" passed into, will raise error or not working.
to write a new unit test, need to set "project_id", and then use the discarded "tenant_id" is not appropriate.

[yatin (yatinkarel)]

Fix is already Proposed, but bot missed updated here:- https://review.opendev.org/c/openstack/neutron/+/834874

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/neutron/+/834874
Committed: https://opendev.org/openstack/neutron/commit/cc50b45ca3c3e0f06034b4f1af581b83359e6172
Submitter: "Zuul (22348)"
Branch: master

commit cc50b45ca3c3e0f06034b4f1af581b83359e6172
Author: zhouhenglc <email address hidden>
Date: Wed Mar 23 21:11:21 2022 +0800

    [test][unit]creating resources support set project_id

    To write a new unit test, need to set "project_id", and then
    use the discarded "tenant_id" is not appropriate.

    this patch updated creating resources method, both "project_id"
    and "tenant_id" are acceptable. of course, "project_id" priority.

    Closes-bug: #1966354

    Change-Id: Ic24f03da169dd3d1549b05b35ec77d3e9a25f17b

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/neutron 21.0.0.0rc1 release candidate.