Align with pyvex on `max_instructions` behavior

[mborgerson]

Description

If max_instructions=1 when pyvex lifts an instruction that will cause delay slot execution, it will return NoDecode. pypcode will actually return 2 instructions. Probably best to be consistent with pyvex here and always decode at most max_instructions, including delay slot execution.

Steps to reproduce the bug

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Environment

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Additional context

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