Put build-essential back into dockerfile

.github/workflows/docker-build-test.yml

@@ -28,7 +28,7 @@ jobs:
         username: ${{ secrets.DOCKERHUB_USERNAME }}
         password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
-    - name: Build and push Docker image
+    - name: Build Docker image
       uses: docker/build-push-action@v5
       with:
         context: .

docker/Dockerfile

@@ -1,7 +1,11 @@
 FROM python:3.10-slim
 COPY . /aider
+
+# Unfortunately to build the multi-arch docker image we need `build-essential` for amd64.
+# Apparently py-tree-sitter-languages doesn't have a pre-built binary wheel?
+
 RUN apt-get update && \
-    apt-get install --no-install-recommends -y git libportaudio2 && \
+    apt-get install --no-install-recommends -y build-essential git libportaudio2 && \
     rm -rf /var/lib/apt/lists/* && \
     pip install --no-cache-dir /aider && \
     rm -rf /aider