Make Python 3.12 linter happy

Signed-off-by: Harry Mellor <[email protected]>

docs/source/generate_examples.py

@@ -178,7 +178,7 @@ def determine_category(self) -> str:
             str: The category of the document.
         """  # noqa: E501
         title = self.title.lower()
-        with open(self.main_file, "r") as f:
+        with open(self.main_file) as f:
             content = f.read().lower()
         final_category = "Other"
         for category, category_info in CATEGORIES.items():
@@ -189,7 +189,8 @@ def determine_category(self) -> str:
 
     def generate(self) -> str:
         # Convert the path to a relative path from __file__
-        make_relative = lambda path: ROOT_DIR_RELATIVE / path.relative_to(ROOT_DIR)
+        make_relative = lambda path: ROOT_DIR_RELATIVE / path.relative_to(
+            ROOT_DIR)
 
         content = f"Source <{self.url}>.\n\n"
         if self.main_file.suffix == ".py":
@@ -218,10 +219,12 @@ def generate_examples():
         EXAMPLE_DOC_DIR.mkdir(parents=True)
 
     # Generate examples_index and examples_{category}_index files
-    examples_index = Index(title="Examples",
-                           description="A collection of examples demonstrating usage of vLLM.\n\nAll documented examples are autogenerated from examples found in [vllm/examples](https://github.com/vllm-project/vllm/tree/main/examples).", 
-                           maxdepth=2,
-                           caption="Categories")
+    examples_index = Index(
+        title="Examples",
+        description=
+        "A collection of examples demonstrating usage of vLLM.\n\nAll documented examples are autogenerated from examples found in [vllm/examples](https://github.com/vllm-project/vllm/tree/main/examples).",  # noqa: E501
+        maxdepth=2,
+        caption="Categories")
     category_indices = {
         category: Index(title=category,
                         description=category_info["description"])