fix(docutils): restore support for Python <3.12 (#20675)

* fix(docutils): restore support for Python <3.12

* fix(docutils): only add the pip flag when required

* chore: fix lint

* chore: tune version number validation

* chore: address review comments

* chore: use env var to handle any pip version

* chore: remove unused import

* docs: add the env variable to zh docs

* fix: pass env vars properly on Windows

* chore: improve readability

.github/workflows/docs.yml

@@ -44,7 +44,7 @@ jobs:
           useRollingCache: true
           install-command: npm ci
       - name: Install dependencies (Python)
-        run: pip install -r packages/docutils/requirements.txt --break-system-packages
+        run: PIP_BREAK_SYSTEM_PACKAGES=1 pip install -r packages/docutils/requirements.txt
       - name: Configure Git User
         run: |
           git config --local user.email "github-actions[bot]@users.noreply.github.com"

.github/workflows/publish-doc.yml

@@ -31,7 +31,7 @@ jobs:
         useRollingCache: true
         install-command: npm ci
     - name: Install dependencies (Python)
-      run: pip install -r packages/docutils/requirements.txt --break-system-packages
+      run: PIP_BREAK_SYSTEM_PACKAGES=1 pip install -r packages/docutils/requirements.txt
     - name: Publish docs
       run: |
         cd packages/appium