Update SPAM filter description (#737)

Author: caleighc

src/openapi/nft/nft.yaml

@@ -1780,7 +1780,7 @@ components:
       name: excludeFilters[]
       description: |-
         Array of filters (as ENUMS) that will be applied to the query. NFTs that match one or more of these filters will be excluded from the response. May not be used in conjunction with includeFilters[]. Filter Options:
-          - SPAM: NFTs that have been classified as spam. Spam classification has a wide range of criteria that includes but is not limited to emitting fake events and copying other well-known NFTs. Please note that this filter is currently supported only on Ethereum Mainnet and Matic Mainnet, and is **available exclusively on paid tiers**.
+          - SPAM: NFTs that have been classified as spam. Spam classification has a wide range of criteria that includes but is not limited to emitting fake events and copying other well-known NFTs. Please note that this filter is currently supported on Mainnet for Base, Arbitrum, Optimism, Ethereum, Polygon, Worldchain, Avax, Gnosis, Zksync, and Blast, and is **available exclusively on paid tiers**.
           - AIRDROPS: NFTs that have were airdropped to the user. Airdrops are defined as NFTs that were minted to a user address in a transaction sent by a different address. NOTE: this filter is currently supported on Ethereum Mainnet, Ethereum Goerli, and Matic Mainnet only.
           - To learn more about spam, you can refer to this: <span class="custom-style"><a href="https://www.alchemy.com/overviews/spam-nfts" target="_blank">Spam NFTs and how to fix them</a></span>
       schema:
@@ -1804,7 +1804,7 @@ components:
       name: includeFilters[]
       description: |-
         Array of filters (as ENUMS) that will be applied to the query. Only NFTs that match one or more of these filters will be included in the response. May not be used in conjunction with excludeFilters[]. Filter Options:
-          - SPAM: NFTs that have been classified as spam. Spam classification has a wide range of criteria that includes but is not limited to emitting fake events and copying other well-known NFTs. Please note that this filter is currently supported only on Ethereum Mainnet and Matic Mainnet, and is **available exclusively on paid tiers**.
+          - SPAM: NFTs that have been classified as spam. Spam classification has a wide range of criteria that includes but is not limited to emitting fake events and copying other well-known NFTs. Please note that this filter is currently supported on Mainnet for Base, Arbitrum, Optimism, Ethereum, Polygon, Worldchain, Avax, Gnosis, Zksync, and Blast, and is **available exclusively on paid tiers**.
           - AIRDROPS: NFTs that have were airdropped to the user. Airdrops are defined as NFTs that were minted to a user address in a transaction sent by a different address. NOTE: this filter is currently supported on Ethereum Mainnet, Ethereum Goerli, and Matic Mainnet only.
           - To learn more about spam, you can refer to this: <span class="custom-style"><a href="https://www.alchemy.com/overviews/spam-nfts" target="_blank">Spam NFTs and how to fix them</a></span>
       schema: