test: New workflow for sqlc-gen-python (sqlc-dev#2936)

* test: New workflow for sqlc-gen-python

* fix workflow

* Run diff in the python examples

* docs: Remove Python examples

They now live in sqlc-gen-python

* test: Remove all python tests

They've been ported to the Python repository

.github/workflows/ci-python.yml

@@ -5,40 +5,21 @@ on:
       - main
   pull_request:
 jobs:
-
   build:
     name: test
     runs-on: ubuntu-latest
-
-    services:
-      postgres:
-        image: postgres:11
-        env:
-          POSTGRES_USER: postgres
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: postgres
-        ports:
-          - 5432:5432
-        # needed because the postgres container does not provide a healthcheck
-        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 5
-
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-go@v4
         with:
-          python-version: 3.9
-      - name: Install python dependencies
-        working-directory: ./examples/python
-        run: |
-          python -m pip install --upgrade pip
-          python -m pip install -r requirements.txt
-      - name: Test python code
-        working-directory: ./examples/python
-        env:
-          PG_USER: postgres
-          PG_HOST: localhost
-          PG_DATABASE: postgres
-          PG_PASSWORD: postgres
-          PG_PORT: ${{ job.services.postgres.ports['5432'] }}
-        run: |
-          pytest src/tests
+          go-version: '1.21.3'
+      - name: install ./...
+        run: go install ./...
+      - uses: actions/checkout@v4
+        with:
+          repository: sqlc-dev/sqlc-gen-python
+          path: python
+      - run: make test
+        working-directory: python
+      - run: sqlc diff
+        working-directory: python/examples