release(core): 1.2.3 (#34421)

Author: ccurme

libs/core/langchain_core/version.py

@@ -1,3 +1,3 @@
 """langchain-core version information and utilities."""
 
-VERSION = "1.2.2"
+VERSION = "1.2.3"

libs/core/pyproject.toml

@@ -9,7 +9,7 @@ license = {text = "MIT"}
 readme = "README.md"
 authors = []
 
-version = "1.2.2"
+version = "1.2.3"
 requires-python = ">=3.10.0,<4.0.0"
 dependencies = [
     "langsmith>=0.3.45,<1.0.0",