Fix live reload for make docs-serve (#2889)

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# Rationale for this change
`make docs-serve` use to live reload on change. This PR fixes the
underlying issue, thanks to
mkdocs/mkdocs#4032 (comment)
From the same thread, it looks like the underlying issue the
`click>8.2.1` which we're using (#2762). click 8.3.2 should fix the
issue,
mkdocs/mkdocs#4032 (comment)
but it doesnt hurt to always explicitly call `--livereload`

## Are these changes tested?

## Are there any user-facing changes?

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Author: kevinjqliu

Makefile

@@ -148,7 +148,7 @@ docs-install: ## Install docs dependencies (included in default groups)
 	uv sync $(PYTHON_ARG) --group docs
 
 docs-serve: ## Serve local docs preview (hot reload)
-	uv run $(PYTHON_ARG) mkdocs serve -f mkdocs/mkdocs.yml
+	uv run $(PYTHON_ARG) mkdocs serve -f mkdocs/mkdocs.yml --livereload
 
 docs-build: ## Build the static documentation site
 	uv run $(PYTHON_ARG) mkdocs build -f mkdocs/mkdocs.yml --strict