chore: install git lfs in dev container (#33468)

### Issue # (if applicable)

Closes #33461 .

### Reason for this change

Because git lfs is not installed in devcontainer.

### Description of changes

install git lfs on dev container.

### Describe any new or updated permissions being added




### Description of how you validated changes



### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

.devcontainer/Dockerfile

@@ -4,8 +4,9 @@ USER root
 
 # Setup oh-my-zsh
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
-    && apt-get -y install --no-install-recommends zsh vim \
+    && apt-get -y install --no-install-recommends zsh vim git-lfs \
     && rm -rf /var/lib/apt/lists/* \
+    && git lfs install \
     && chsh -s $(which zsh) superchain
 
 # Required, otherwise shell is extermly slow due the size of the aws-cdk