Upgrade Solana dependencies to 4.2.2 and port relevant upstream changes

[bmuddha]

Outcome

Align Engine with Solana/Agave 4.2.2 while preserving MagicBlock runtime behavior.

Scope

• Update dependencies and lockfile, keeping independently versioned SDK crates compatible.
• Port relevant upstream changes into the forked account, program-runtime, SVM, transaction-context, and transaction-view crates under solana/, preserving MagicBlock customizations.
• Adapt affected Engine call sites while preserving borrowed-account layout, direct VM mapping, CPI safety, and private transaction compatibility.

MBV integration is tracked separately in magicblock-labs/magicblock-validator#1660.

Acceptance criteria

• Dependencies resolve against the intended 4.2.2 release family.
• Relevant upstream changes are ported; intentional omissions are explained in the PR.
• Existing targeted checks pass, preserving runtime-fork contracts and deterministic execution.
• The resulting Engine revision is identified for the MBV follow-up.