Added new workflow for postgres package (#6646)

Co-authored-by: “Vijay” <“vijay.l@deuexsolutions.com”>

.github/workflows/docker-openmetadata-postgres.yml

@@ -0,0 +1,56 @@
+#  Copyright 2021 Collate
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#  http://www.apache.org/licenses/LICENSE-2.0
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+
+name: docker-openmetadata-postgres-db docker
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Input tag"
+        required: true
+  release:
+    types: [published]
+
+jobs:
+  push_to_docker_hub:
+    runs-on: ubuntu-latest
+    env:
+      input: ${{ github.event.inputs.tag }}
+    
+    steps:
+      - name: Check trigger type
+        if: ${{ env.input == '' }}
+        run: echo "input=0.10.4" >> $GITHUB_ENV
+        
+      - name: Check out the Repo
+        uses: actions/checkout@v2
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v1 
+        with:
+          username: ${{ secrets.DOCKERHUB_OPENMETADATA_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_OPENMETADATA_TOKEN }}
+      
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: linux/amd64,linux/arm64
+          push: ${{ github.event_name == 'release' }}
+          # Update tags before every release
+          tags: 'openmetadata/postgres:${{ env.input }},openmetadata/postgres:latest'
+          file: ./docker/local-metadata/Dockerfile_postgres