update CORE_XE_VERSION to 2.6.0 (#11929)

Author: liu-shaojun

python/llm/setup.py

@@ -46,7 +46,7 @@
 IPEX_LLM_PYTHON_HOME = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 VERSION = open(os.path.join(IPEX_LLM_PYTHON_HOME,
                './llm/version.txt'), 'r').read().strip()
-CORE_XE_VERSION = VERSION.replace("2.2.0", "2.5.0")
+CORE_XE_VERSION = VERSION.replace("2.2.0", "2.6.0")
 llm_home = os.path.join(os.path.dirname(os.path.abspath(__file__)), "src")
 github_artifact_dir = os.path.join(llm_home, '../llm-binary')
 libs_dir = os.path.join(llm_home, "ipex_llm", "libs")