enable builtin ed25519 signature verify program

Active on mainnet-beta (epoch 273), testnet (epoch 273) and devnet (epoch 253).

Introduced in solana-labs/solana PR #21669.

Feature id 6ppMXNYLhVd7GcsZ5uV11wQEW7spppiMVfqQv5SXhDpX.

Vortex

• Consensus leaderboard
• Fees leaderboard
• Validators
• Stake pools
• Decentralization
• Client versions
• Cluster status
• Governance
• Feature gates
• SIMDs
• Activity
• API and AI usage