community[minor]: add mintbase loader to langchain (#20089)
- [x] **Add Near NFT loader**: "community: Load NFT near block chain
using mintbase graph API"
- [x] **PR message**:
- **Description:** a description of the change
- **Twitter handle:**Kurodenjiro
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Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
