Add v9.sql migration: missing index on nostr_federations(federation_id)#1

bansalayush247 with Copilot wants to merge 2 commits into

masterbansalayush247/fedimint-observer:masterfrom

copilot/check-modifications-in-v9-sqlbansalayush247/fedimint-observer:copilot/check-modifications-in-v9-sqlCopy head branch name to clipboard