chore(langgraph): bump version to 1.2.2 (#7914)

Patch bump to 1.2.2 following the 1.2.1 release.

libs/langgraph/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "langgraph"
-version = "1.2.1"
+version = "1.2.2"
 description = "Building stateful, multi-actor applications with LLMs"
 authors = []
 requires-python = ">=3.10"

libs/langgraph/uv.lock

@@ -1382,7 +1382,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.1"
+version = "1.2.2"
 source = { editable = "." }
 dependencies = [
     { name = "langchain-core" },

libs/prebuilt/uv.lock

@@ -285,7 +285,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.1"
+version = "1.2.2"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },

libs/sdk-py/uv.lock

@@ -298,7 +298,7 @@ wheels = [
 
 [[package]]
 name = "langgraph"
-version = "1.2.1"
+version = "1.2.2"
 source = { editable = "../langgraph" }
 dependencies = [
     { name = "langchain-core" },