[Python Client] CI for Python client (Continue PR#1096)

.github/workflows/python-client.yml

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+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+#
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a Python project with Poetry and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/use-cases-and-examples/building-and-testing/building-and-testing-python
+
+name: Python Client CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.9", "3.10", "3.11"]
+
+    steps:
+      - name: Checkout Polaris project
+        uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install Poetry
+        run: |
+          pip install --user --upgrade -r regtests/requirements.txt
+
+      # TODO: add cache for poetry dependencies once we have poetry.lock in the repo
+      - name: Install dependencies
+        working-directory: client/python
+        run: poetry install --all-extras
+
+      - name: Lint with flake8
+        working-directory: client/python
+        run: |
+          poetry run flake8 --select=E9,F63,F7,F82 --max-line-length=127 --statistics
+
+      - name: Test with pytest
+        working-directory: client/python
+        run: |
+          export SCRIPT_DIR="non-existing-mock-directory"
+          poetry run pytest