fix(core/vm): make all opcodes proper type #30925

[gzliudan]

Proposed changes

Noticed this omission while doing some work on goevmlab. We don't properly type some of the opcodes, but apparently implicit casting works in all the internal usecases.

Ref: ethereum#30925

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[Copilot]

Pull request overview

This PR corrects opcode constant typing in the EVM opcode definitions so DUP and SWAP opcode ranges are explicitly typed as vm.OpCode, aligning them with the rest of the opcode constants.

Changes:

• Type DUP1 (and thus the entire DUP iota block) as OpCode.
• Type SWAP1 (and thus the entire SWAP iota block) as OpCode.

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