Add environment variable to disable MkDocs 2 warning in integration tests (#50)

* Add environment variable to disable MkDocs 2 warning in integration tests

* Disable MkDocs warning for integration tests

Set environment variable to disable MkDocs warning during integration tests.

* Apply suggestions from code review

Co-authored-by: Xianpeng Shen <xianpeng.shen@gmail.com>

Author: shenxianpeng

.github/workflows/ci.yml

@@ -50,6 +50,7 @@ jobs:
           hatch run +py=${{ matrix.py || matrix.python-version }} ${{ matrix.test-script }}
       - name: Run integration tests
         run: |
+          export DISABLE_MKDOCS_2_WARNING=true
           hatch run +py=${{ matrix.py || matrix.python-version }} integration:test
         shell: bash
       - name: Upload Codecov Results