Update docker.yml

.github/workflows/docker.yml

@@ -30,6 +30,6 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          platforms: linux/amd64,linux/arm64,linux/arm64/v8,linux/arm/v7
+          platforms: linux/amd64,linux/arm64,linux/arm64/v8
           push: true
           tags: ftcaplan/matrix-stt-bot:latest