chore - update to langchain 0.3 and make it the min requirement / update other dependencies

Author: ksachdeva

.gitignore

@@ -169,3 +169,4 @@ outputs
 test-data
 scratch
 .DS_Store
+tmp-*

examples/.gitignore

@@ -0,0 +1 @@
+notebooks

pyproject.toml

@@ -1,13 +1,13 @@
 [project]
 name = "langchain-graphrag"
-version = "0.0.7"
+version = "0.0.8"
 description = "Implementation of GraphRAG (https://arxiv.org/pdf/2404.16130)"
 authors = [{ name = "Kapil Sachdeva", email = "[email protected]" }]
 dependencies = [
     "pandas>=2.2.2",
     "networkx>=3.3",
-    "langchain-core>=0.2.27",
-    "langchain-text-splitters>=0.2.2",
+    "langchain-core>=0.3.0",
+    "langchain-text-splitters>=0.3.0",
     "graspologic>=3.4.1",
     "tableprint>=0.9.1",
 ]