docs: Add 2 chains to feature matrix: fuse & blast

[p-diogo]

Adds full protocol support for ~moonbeam,~ fuse, and blast data sources.

The Council will be reviewing the CIP reports for these chains this Thursday.

Next steps:

• [ ] Create a GGP referencing this PR (Council approving full protocol support for these 3 chains)
• [ ] Wait for the Council to vote
• [ ] Add GGP to the feature matrix
• [ ] Merge PR

EDIT: removed moonbeam from the list.