feat: add metis activation aip

[brotherlymite]

AIP to activate on metis network and list assets suggested by the risk providers on version 3.0.2

• governance forum: https://governance.aave.com/t/launch-aave-v3-on-metis/7056
• snapshot: https://snapshot.org/#/aave.eth/proposal/0x7e6175c21342dbd88dc5b0dabf2d0a86339e3ef3f199fc7d778a9a6f05ed0df9

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