CI:Add autobuild docker image (#6)

Co-authored-by: purofle <purofle@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

.github/workflows/docker.yml

@@ -0,0 +1,33 @@
+name: Docker
+
+on:
+ workflow_dispatch:
+ push:
+    branches:
+      - main # default branch
+    paths:
+      - bot/**
+
+jobs:
+  Ghcr:
+    name: Publish to ghcr.io
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4.2.2
+      - name: Setup Docker Buildx
+        uses: docker/setup-buildx-action@v3.8.0
+      - name: Login
+        uses: docker/login-action@v3.3.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build & Push
+        uses: docker/build-push-action@v6.11.0
+        with:
+          context: .
+          push: true
+          tags: ghcr.io/purofle/sbbot:latest
+          platforms: linux/amd64,linux/arm64
+          cache-from: type=registry,ref=ghcr.io/purofle/sbbot:latest
+          cache-to: type=inline