Replace `thegraph_core::Address` with `alloy::primitives::Address`

[gusinacio]

We are importing in multiple places from thegraph_core::Address which is just a re-export of alloy::primitives::Address.

This allows will cleanup our imports a little bit.

[PanGan21]

Hi @gusinacio , I created a pr for that. Hopefully it achieves what is required for this issue 🙂