title: Update Metadata of Solana NFT Collection
body: <p>So, I had launched a NFT Collection on the Solana Blockchain recently, and it got fully sold out.</p>
  <p>But I just realised that the royalties i.e. the <code>seller_fee_basis_points</code> are not according to my requirement.</p>
  <p>So I wanted to know how could I update the metadata so that I can change the amount of royalties a creator gets for all the NFTs in the minted collection:)</p>