docs: vcr only set up for markdown (#3339)

- PR branch for testing w/ typescript (@benjamincburns )
- implementation needs better cache invalidation for the cassettes
(@eyurtsev)

---------

Co-authored-by: Ben Burns <803016+benjamincburns@users.noreply.github.com>

docs/pyproject.toml

@@ -9,6 +9,7 @@ readme = "README.md"
 [tool.poetry.dependencies]
 python = "^3.10"
 aiohappyeyeballs = "2.4.3"
+pygments-ansi-color = ">=0.3"
 
 [tool.poetry.group.docs.dependencies]
 langgraph = { path = "../libs/langgraph/", develop = true }
@@ -24,8 +25,8 @@ mkdocs-minify-plugin = "^0.8.0"
 mkdocs-rss-plugin = "^1.13.1"
 mkdocs-git-committers-plugin-2 = "^2.3.0"
 mkdocs-material = {extras = ["imaging"], version = "^9.5.27"}
-markdown-include = "^0.8.1"
 markdown-callouts = "^0.4.0"
+markdown-include = "^0.8.1"
 mkdocs-exclude = "^1.0.2"
 vcrpy = "^6.0.1"
 click = "^8.1.7"