apigee: fix import format docs for google_apigee_addons_config (org not name)

[xuchenma]

Summary

Fixes: hashicorp/terraform-provider-google#14607

The generated documentation for google_apigee_addons_config showed {{name}} as the import identifier field, but the actual field is named {{org}}. This caused the import instructions in the docs to be incorrect.

Root cause: AddonsConfig.yaml had no import_format section. Without it, the code generator fell back to a default that used {{name}}, which is not a field on this resource. The correct field is {{org}}.

Fix: Added import_format to AddonsConfig.yaml explicitly specifying organizations/{{org}} and {{org}}.

Test evidence

TestAccApigeeAddonsConfig_apigeeAddonsTestExample passed locally (1377s):

--- PASS: TestAccApigeeAddonsConfig_apigeeAddonsTestExample (1377.15s)
PASS
ok  	github.com/hashicorp/terraform-provider-google/google/services/apigee	1378.010s

apigee: fixed `google_apigee_addons_config` import documentation to use correct field name `org` instead of `name`

[github-actions]

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