Rename DeepSeek-Coder-V2-Instruct-IQ2_XS-00002-of-00002.gguf to DeepSeek-Coder-V2-Instruct-IQ2_XS.gguf/DeepSeek-Coder-V2-Instruct-IQ2_XS-00002-of-00002.gguf

Rename DeepSeek-Coder-V2-Instruct-IQ2_XS-00001-of-00002.gguf to DeepSeek-Coder-V2-Instruct-IQ2_XS.gguf/DeepSeek-Coder-V2-Instruct-IQ2_XS-00001-of-00002.gguf