add gitea docker publish workflow

.gitea/workflows/docker.yaml

@@ -0,0 +1,57 @@
+---
+name: docker-publish
+on: [push, workflow_dispatch]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+      - name: Set up docker
+        uses: docker/setup-buildx-action@v3
+      - name: Log in to the Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ gitea.server_url }}
+          username: ${{ gitea.actor }}
+          password: ${{ secrets.PACKAGES_TOKEN }}
+      - name: Extract metadata for SQLite image
+        id: meta-sqlite
+        uses: docker/metadata-action@v5
+        with:
+          images: gitea.bp99.eu/${{ gitea.repository }}
+          tags: |
+            type=ref,event=tag
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=raw,value=latest
+      - name: Extract metadata for PostgreSQL image
+        id: meta-postgres
+        uses: docker/metadata-action@v5
+        with:
+          images: gitea.bp99.eu/${{ gitea.repository }}-postgres
+          tags: |
+            type=ref,event=tag
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+            type=raw,value=latest
+      - name: Build and push SQLite docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./
+          file: Dockerfile-sqlite
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta-sqlite.outputs.tags }}
+          labels: ${{ steps.meta-sqlite.outputs.labels }}
+      - name: Build and push PostgreSQL docker image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./
+          file: Dockerfile-postgres
+          platforms: linux/amd64
+          push: true
+          tags: ${{ steps.meta-postgres.outputs.tags }}
+          labels: ${{ steps.meta-postgres.outputs.labels }}