Fix CI for Windows support and align with main workflow conventions

- tests/test_windows_compatibility.py: mark the docstring with a backslash
  path example as a raw string so ruff D301 passes on pre-commit.ci.
- .github/workflows/tests.yml: drop windows_postgres_18 and
  windows_postgres_16 jobs. ankane/setup-postgres@v1 only ships
  PostgreSQL 17 on the Windows runner, so those versions cannot install
  and the jobs are guaranteed to fail. Keep windows_postgres_17 and add
  the codecov_token secret so coverage uploads work.
- .github/workflows/dockerised-postgres.yml: remove the stale
  editable: true flag. Per fizyk in #1294, the editable self-install is
  handled by the pytest-postgresql entry in the Pipfile, and the other
  workflows on main do not set the flag either.

Made-with: Cursor

Author: tboy1337

.github/workflows/dockerised-postgres.yml

@@ -54,7 +54,6 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
-          editable: true
       - name: Run test noproc fixture on docker
         uses: fizyk/actions-reuse/.github/actions/pipenv-run@v4.4.4
         with:

.github/workflows/tests.yml

@@ -77,27 +77,15 @@ jobs:
       python-versions: '["3.13", "3.14"]'
     secrets:
       codecov_token: ${{ secrets.CODECOV_TOKEN }}
-  windows_postgres_18:
-    needs: [postgresql_18]
-    uses: ./.github/workflows/single-postgres.yml
-    with:
-      postgresql: 18
-      os: windows-latest
-      python-versions: '["3.12", "3.13", "3.14"]'
   windows_postgres_17:
-    needs: [postgresql_17, windows_postgres_18]
+    needs: [postgresql_17]
     uses: ./.github/workflows/single-postgres.yml
     with:
       postgresql: 17
       os: windows-latest
       python-versions: '["3.12", "3.13", "3.14"]'
-  windows_postgres_16:
-    needs: [postgresql_16, windows_postgres_17]
-    uses: ./.github/workflows/single-postgres.yml
-    with:
-      postgresql: 16
-      os: windows-latest
-      python-versions: '["3.13", "3.14"]'
+    secrets:
+      codecov_token: ${{ secrets.CODECOV_TOKEN }}
   docker_postgresql_18:
     needs: [postgresql_18]
     uses: ./.github/workflows/dockerised-postgres.yml

tests/test_windows_compatibility.py

@@ -784,10 +784,10 @@ class TestRunningMethod:
     """Test that running() uses safe list-form subprocess invocation."""
 
     def test_running_passes_executable_as_argv_element(self) -> None:
-        """Test that running() passes the executable as an argv element, not a shell string.
+        r"""Test that running() passes the executable as an argv element, not a shell string.
 
         Using subprocess.run with a list means paths with spaces (e.g.
-        C:\\Program Files\\...\\pg_ctl.exe) are passed as a single token to the
+        C:\Program Files\...\pg_ctl.exe) are passed as a single token to the
         OS without any shell parsing, so no quoting is required or desired.
         """
         executor = PostgreSQLExecutor(