[OpInfo] Add multi_head_attention_forward (#100153)
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### <samp>🤖 Generated by Copilot at 8f8d620</samp>
This pull request improves the testing of the `nn.functional.multi_head_attention_forward` function by adding it to the `OpInfo` framework, adjusting the tolerance and skipping criteria for some test cases, and restricting the dtype for the `MetaProgrammingSystem` tests. These changes aim to address the randomness and numerical precision issues of the function.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/100153
Approved by: https://github.com/drisspg
