 Move pytest.importorskip to run earlier (#1346)
 Move pytest.importorskip to run earlier (#1346)

* Move pytest.importorskip to run earlier

Currently pytest fails to collect tests when `azure` is not present. Moving the pytest.importorskip clause before `from kombu.transport import azureservicebus` fixes it.

```
==================================== ERRORS ====================================
__________ ERROR collecting t/unit/transport/test_azureservicebus.py ___________
ImportError while importing test module '/build/python-kombu/src/kombu-5.1.0/t/unit/transport/test_azureservicebus.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
/usr/lib/python3.9/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
t/unit/transport/test_azureservicebus.py:12: in <module>
    from kombu.transport import azureservicebus
kombu/transport/azureservicebus.py:66: in <module>
    import azure.core.exceptions
E   ModuleNotFoundError: No module named 'azure'
```

* Add # noqa to make linter happy
celery/kombu