add add_get_processed_sibling_instruction_syscall

Active on mainnet-beta (epoch 311), testnet (epoch 301) and devnet (epoch 297).

Introduced in solana-labs/solana PR #22859.

Feature id CFK1hRCNy8JJuAAY8Pb2GjLFNdCThS2qwZNe3izzBMgn.

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