feat: [AdsDataManager] add encrypted_user_id.proto and the EncryptedUserId resource (#9192)

* feat: add the coupon_codes field to CartData to track coupon redemptions for Google Ads and Google Analytics
feat: add the ItemCustomVariable resource to track per-item custom variables
feat: add merchant_id, merchant_feed_label, merchant_feed_language_code, conversion_value, and custom_variables fields to Item
feat: add the https://www.googleapis.com/auth/datamanager.partnerlink OAuth scope to PartnerLinkService
feat: add metadata fields to DeviceInfo to provide details about the user’s device
feat: add several new values to the ErrorReason enum to support store sales and Google Analytics validation
docs: update the description of transaction_id in Event to clarify its use for tag and SDK conversions
docs: update the description of enum value for PROCESSING_WARNING_REASON_USER_IDENTIFIER_DECRYPTION_ERROR to resolve typo
docs: update RequestStatus enum value descriptions to include details on error and warning information
docs: clarify population behavior for error_info and warning_info fields in RequestStatusPerDestination
feat: add third_party_user_data, event_location, and app_instance_id to Event
feat: add the MESSAGE value to the EventSource enum
feat: add mobile_device_id to AdIdentifiers for Google Analytics
feat: add a processing error reason related to BRAIDs and one-per-click conversions
feat: add youtube_members_count and gmail_members_count fields to the SizeInfo resource

PiperOrigin-RevId: 917255480

Source-Link: googleapis/googleapis@eb644cf

Source-Link: googleapis/googleapis-gen@4f030cc
Copy-Tag: eyJwIjoiQWRzRGF0YU1hbmFnZXIvLk93bEJvdC55YW1sIiwiaCI6IjRmMDMwY2M4MmU4NzE1MDZmYTNlNjkxY2I5Y2NhYjVhNmRmOWFlOTkifQ==

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* feat: add encrypted_user_id.proto and the EncryptedUserId resource
feat: add composite_data to AudienceMember to support multiple identifier types
feat: add FLOODLIGHT_CONFIG to the list of destination types
feat: add conversion_count, dclid, impression_id, match_id, and encrypted_user_ids to the Event resource
feat: add new error reasons to ErrorReason for field length, element counts, location detection, and missing insights
feat: add new processing error reasons for ID lookup failures and click attribution
feat: add composite data ingestion and removal statuses to RequestStatusPerDestination
docs: update the comment for value FIELD_VALUE_TOO_LONG in enum ErrorReason
docs: update the comment for the `ProcessingErrorReason` enum

PiperOrigin-RevId: 922998191

Source-Link: googleapis/googleapis@559bac6

Source-Link: googleapis/googleapis-gen@33daea2
Copy-Tag: eyJwIjoiQWRzRGF0YU1hbmFnZXIvLk93bEJvdC55YW1sIiwiaCI6IjMzZGFlYTIwOTBkNGJiNzNhNmYyNWQ0MjU5YWJhYTk2NmE5ODc1ZWQifQ==

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>
Co-authored-by: Brent Shaffer <betterbrent@google.com>

Author: gcf-owl-bot[bot]