action: add docker build

Author: ReturnToFirst

.github/workflows/docker.yaml

@@ -0,0 +1,33 @@
+on:
+  push:
+    branches:
+      - "*"
+    tags:
+      - "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      -
+        name: Login to Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      -
+        name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          platforms: linux/amd64, linux/arm64
+          push: true
+          tags: ghcr.io/returntofirst/xunity-autotranslator-openai:latest