Update several dependencies.

pyproject.toml

@@ -2,7 +2,8 @@
 name = "Summarizer"
 version = "0.1"
 dependencies = [
-    "langchain-openai == 0.0.8",
+    "langchain == 0.1.13",
+    "langchain-openai == 0.1.1",
 ]
 
 [project.scripts]
@@ -11,19 +12,19 @@ summarizer = "summarizer.app:main"
 [project.optional-dependencies]
 dev = [
     "bandit == 1.7.8",
-    "coverage == 7.4.3",
+    "coverage == 7.4.4",
     "fixit == 2.1.0",
-    "green == 4.0.0",
-    "mypy == 1.8.0",
+    "green == 4.0.1",
+    "mypy == 1.9.0",
     "pip == 24.0",
-    "ruff == 0.3.2",
+    "ruff == 0.3.4",
     "twine == 5.0.0",
     "unittest-xml-reporting == 3.2.0",
     "vulture == 2.11",
 ]
 
 [tool.coverage.run]
-source = ["."]
+source = ["src", "tests"]
 branch = true
 relative_files = true