Fix path + ffmpeg

.gitea/workflows/build-and-push.yml

@@ -65,6 +65,7 @@ jobs:
       uses: docker/build-push-action@v5
       with:
         context: .
+        file: build/node.dockerfile
         platforms: linux/amd64,linux/arm64
         push: true
         tags: ${{ steps.meta.outputs.tags }}

build/node.dockerfile

@@ -5,7 +5,7 @@ ENV NODE_ENV=production
 
 WORKDIR /app
 
-RUN apk add --no-cache python3 make g++
+RUN apk add --no-cache ffmpeg python3 make g++
 
 # Copy package files and install only production dependencies
 COPY package.json package-lock.json* .