fix(.github/workflows/main.yml): set env at runtime

Author: gutsytechster

.github/workflows/main.yml

@@ -52,13 +52,13 @@ jobs:
           pip install tox
       - name: Run tests
         env:
-          TZ: ${{ matrix.timezone || 'UTC' }}
+
         run: |
-          echo "Running tests with timezone: $TZ"
-          date
-          python -c "import datetime; print(f'Python datetime now: {datetime.datetime.now()}')"
-          python -c "import time; print(f'Python time localtime: {time.localtime()}')"
-          tox -e ${{ matrix.toxenv || 'py' }}
+          TZ=${{ matrix.timezone || 'UTC' }} echo "Running tests with timezone: $TZ"
+          TZ=${{ matrix.timezone || 'UTC' }} date
+          TZ=${{ matrix.timezone || 'UTC' }} python -c "import datetime; print(f'Python datetime now: {datetime.datetime.now()}')"
+          TZ=${{ matrix.timezone || 'UTC' }} python -c "import time; print(f'Python time localtime: {time.localtime()}')"
+          TZ=${{ matrix.timezone || 'UTC' }} tox -e ${{ matrix.toxenv || 'py' }}
       - name: Upload coverage.xml to codecov
         uses: codecov/codecov-action@v5
         with: