Update gh-pages.yml and mkdocs.yml: set PYTHONPATH for build environment and remove unnecessary setup commands

Author: bolak92

.github/workflows/gh-pages.yml

@@ -44,6 +44,8 @@ jobs:
           pip install "mkdocstrings>=0.25" "mkdocstrings-python>=1.9" "mike>=2.0" "mkdocs-autorefs>=1.0" "mkdocs-git-revision-date-localized-plugin>=1.2"
       #          pip install Markdown==3.10 Jinja2==3.1.6 pymdown-extensions==10.18 mkdocs==1.6.1 mkdocstrings==1.0.0 mkdocstrings-python==2.0.1 mike==2.1.3 mkdocs-autorefs==1.4.3 mkdocs-material==8.2.7 mkdocs-git-revision-date-localized-plugin==1.5.0 mkdocs-plugin-tags==1.0.2
       - name: Build site
+        env:
+          PYTHONPATH: ${{ github.workspace }}
         run: mkdocs build --strict
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3

mkdocs.yml

@@ -66,9 +66,6 @@ plugins:
   - mkdocstrings:
       handlers:
         python:
-          setup_commands:
-            - import sys
-            - sys.path.append('.')
           paths: ['.']
           options:
             show_source: false