Fix docker release (#817)

* fix docker release

* undo pull_request triggering a test job

Author: wing328

.github/workflows/docker-release.yml

@@ -0,0 +1,39 @@
+name: Docker Release
+on:
+  workflow_dispatch:
+    inputs:
+      releaseVersion:
+        description: 'Release version to tag (e.g., 2.1.0). Will be used for release artifacts and git tag.'
+        required: true
+      developmentVersion:
+        description: 'Next development version (e.g., 2.2.0-SNAPSHOT). Will be used for continuing development after release.'
+        required: true
+env:
+  OSS_USERNAME: ${{ secrets.OSS_USERNAME }}
+  OSS_PASSWORD: ${{ secrets.OSS_PASSWORD }}
+  GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+        with:
+          ref: ${{ github.event.inputs.releaseVersion }}
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+      - name: Login to DockerHub
+        uses: docker/login-action@v3 
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_PASSWORD }}
+      - name: Build & Push Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: true
+          platforms: linux/amd64,linux/arm64
+          tags: |
+            openapitools/openapi-diff:${{ github.event.inputs.releaseVersion }}
+            openapitools/openapi-diff:latest