test(apig): modify the reference value of the filter condition of the datasources

[wuzhuanhong]

What this PR does / why we need it:

Modify the filter condition values ​​of all DataSources to be obtained from the current resource.

Which issue this PR fixes: (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged) fixes #xxx

Special notes for your reviewer:

Release note:

PR Checklist

• [x] Tests added/passed.
• [ ] Documentation updated.
• [ ] Schema updated.

Acceptance Steps Performed

make testacc TEST='./huaweicloud' TESTARGS='-run=TestAccSomethingV0_basic'
...
./scripts/acc-test.sh
>>> Start to test
=== RUN   TestAccDataSourceAclPolicies_basic
=== PAUSE TestAccDataSourceAclPolicies_basic
=== RUN   TestAccDataSourceApiAssociatedAclPolicies_basic
=== PAUSE TestAccDataSourceApiAssociatedAclPolicies_basic
=== RUN   TestAccDataSourceApiAssociatedApplications_basic
=== PAUSE TestAccDataSourceApiAssociatedApplications_basic
=== RUN   TestAccDataSourceApiAssociatedPlugins_basic
=== PAUSE TestAccDataSourceApiAssociatedPlugins_basic
=== RUN   TestAccDataSourceApiAssociatedSignatures_basic
=== PAUSE TestAccDataSourceApiAssociatedSignatures_basic
=== RUN   TestAccDataSourceApiAssociatedThrottlingPolicies_basic
=== PAUSE TestAccDataSourceApiAssociatedThrottlingPolicies_basic
=== RUN   TestAccDataSourceApiBasicConfigurations_basic
=== PAUSE TestAccDataSourceApiBasicConfigurations_basic
=== RUN   TestAccDataSourceApi_basic
=== PAUSE TestAccDataSourceApi_basic
=== RUN   TestAccDataSourceAppcodes_basic
=== PAUSE TestAccDataSourceAppcodes_basic
=== RUN   TestAccDataSourceApplicationAcl_basic
=== PAUSE TestAccDataSourceApplicationAcl_basic
=== RUN   TestAccDataSourceApplicationAcl_expectError
=== PAUSE TestAccDataSourceApplicationAcl_expectError
=== RUN   TestAccDataSourceApplicationQuotas_basic
=== PAUSE TestAccDataSourceApplicationQuotas_basic
=== RUN   TestAccDataSourceApplications_basic
=== PAUSE TestAccDataSourceApplications_basic
=== RUN   TestAccDataSourceChannels_basic
=== PAUSE TestAccDataSourceChannels_basic
=== RUN   TestAccDataSourceCustomAuthorizers_basic
=== PAUSE TestAccDataSourceCustomAuthorizers_basic
=== RUN   TestAccDataSourceEndpointConnections_basic
=== PAUSE TestAccDataSourceEndpointConnections_basic
=== RUN   TestAccDataSourceApigEnvironmentVariables_basic
=== PAUSE TestAccDataSourceApigEnvironmentVariables_basic
=== RUN   TestAccDataSourceEnvironments_basic
=== PAUSE TestAccDataSourceEnvironments_basic
=== RUN   TestAccDataSourceGroups_basic
=== PAUSE TestAccDataSourceGroups_basic
=== RUN   TestAccDataSourceInstanceFeatures_basic
=== PAUSE TestAccDataSourceInstanceFeatures_basic
=== RUN   TestAccDataSourceInstanceSupportedFeatures_basic
=== PAUSE TestAccDataSourceInstanceSupportedFeatures_basic
=== RUN   TestAccDataSourceInstances_basic
=== PAUSE TestAccDataSourceInstances_basic
=== RUN   TestAccDataSourceSignatures_basic
=== PAUSE TestAccDataSourceSignatures_basic
=== RUN   TestAccDataSourceThrottlingPolicies_basic
=== PAUSE TestAccDataSourceThrottlingPolicies_basic
=== CONT  TestAccDataSourceAclPolicies_basic
=== CONT  TestAccDataSourceCustomAuthorizers_basic
=== CONT  TestAccDataSourceThrottlingPolicies_basic
=== CONT  TestAccDataSourceSignatures_basic
=== CONT  TestAccDataSourceInstances_basic
--- PASS: TestAccDataSourceSignatures_basic (135.98s)
=== CONT  TestAccDataSourceInstanceSupportedFeatures_basic
--- PASS: TestAccDataSourceCustomAuthorizers_basic (139.03s)
=== CONT  TestAccDataSourceInstanceFeatures_basic
--- PASS: TestAccDataSourceInstanceSupportedFeatures_basic (19.08s)
=== CONT  TestAccDataSourceGroups_basic
--- PASS: TestAccDataSourceInstanceFeatures_basic (46.37s)
=== CONT  TestAccDataSourceEnvironments_basic
--- PASS: TestAccDataSourceEnvironments_basic (39.87s)
=== CONT  TestAccDataSourceApigEnvironmentVariables_basic
--- PASS: TestAccDataSourceGroups_basic (80.71s)
=== CONT  TestAccDataSourceEndpointConnections_basic
--- PASS: TestAccDataSourceApigEnvironmentVariables_basic (131.30s)
=== CONT  TestAccDataSourceApi_basic
--- PASS: TestAccDataSourceAclPolicies_basic (411.56s)
=== CONT  TestAccDataSourceChannels_basic
--- PASS: TestAccDataSourceThrottlingPolicies_basic (415.70s)
=== CONT  TestAccDataSourceApplications_basic
--- PASS: TestAccDataSourceApplications_basic (86.79s)
=== CONT  TestAccDataSourceApplicationQuotas_basic
--- PASS: TestAccDataSourceApplicationQuotas_basic (75.34s)
=== CONT  TestAccDataSourceApplicationAcl_expectError
--- PASS: TestAccDataSourceApplicationAcl_expectError (3.46s)
=== CONT  TestAccDataSourceApplicationAcl_basic
--- PASS: TestAccDataSourceInstances_basic (632.89s)
=== CONT  TestAccDataSourceAppcodes_basic
--- PASS: TestAccDataSourceApplicationAcl_basic (64.55s)
=== CONT  TestAccDataSourceApiAssociatedSignatures_basic
--- PASS: TestAccDataSourceApi_basic (338.40s)
=== CONT  TestAccDataSourceApiBasicConfigurations_basic
--- PASS: TestAccDataSourceChannels_basic (286.64s)
=== CONT  TestAccDataSourceApiAssociatedApplications_basic
--- PASS: TestAccDataSourceAppcodes_basic (130.94s)
=== CONT  TestAccDataSourceApiAssociatedPlugins_basic
--- PASS: TestAccDataSourceEndpointConnections_basic (718.64s)
=== CONT  TestAccDataSourceApiAssociatedAclPolicies_basic
--- PASS: TestAccDataSourceApiAssociatedSignatures_basic (393.88s)
=== CONT  TestAccDataSourceApiAssociatedThrottlingPolicies_basic
--- PASS: TestAccDataSourceApiAssociatedApplications_basic (522.08s)
--- PASS: TestAccDataSourceApiBasicConfigurations_basic (564.08s)
--- PASS: TestAccDataSourceApiAssociatedPlugins_basic (502.85s)
--- PASS: TestAccDataSourceApiAssociatedAclPolicies_basic (424.40s)
--- PASS: TestAccDataSourceApiAssociatedThrottlingPolicies_basic (392.89s)
PASS
coverage: 58.8% of statements in ../../apig
ok      github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/services/acceptance/apig      1432.677s