Add Graphql Pagination with Giveth Data Contribution

[Rashmi-278]

Summary

This PR introduces full support for pagination in GraphQL data sources using both offset-based and cursor-based methods. It extends the GraphQLResourceConfig and dynamically handles paginated GraphQL queries across any compatible API. The implementation is generic and reusable, with minimal changes required to onboard new data sources.

Features Added

1. Extended GraphQLResourceConfig

• Added a new pagination field to support dynamic pagination configuration.
• Compatible with both offset and cursor styles.

2. Offset-Based Pagination Support

• Implements skip + take logic.
• Configurable parameter names (offset_param, limit_param, start_offset).
• Automatically paginates through all data using defined chunk sizes.

3. Cursor-Based Pagination Support

• Supports after or before cursors and limits via first/last.
• Walks the GraphQL response using user-defined paths (path_to_data, path_to_cursor, path_to_next).
• Designed to work with GraphQL Relay-style APIs and dynamic datasets.

4. Retry and Debounce Handling

• Includes retry mechanism with exponential backoff across pagination calls.
• Prevents accidental infinite loops by checking hasNextPage and cursor equality.

Changes Made

• Rewrote the _execute_query logic inside graphql_factory.
• Added a helper walk_path() function for nested cursor paths.
• Ensured backward compatibility for non-paginated resources.

Integration Test: Giveth Data Contribution

Documentation: https://hackmd.io/@torchablazed/S1Iloae-ge

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[Jabolol]

Closing in favor of #4527, thank u :)