feat(m365powershell): add pwsh authentication via service principal (#7992)

Co-authored-by: alejandrobailo <alejandrobailo94@gmail.com>
Co-authored-by: Adrián Jesús Peña Rodríguez <adrianjpr@gmail.com>
Co-authored-by: Daniel Barranquero <danielbo2001@gmail.com>
Co-authored-by: MrCloudSec <hello@mistercloudsec.com>

api/src/backend/conftest.py

@@ -381,8 +381,14 @@ def providers_fixture(tenants_fixture):
         tenant_id=tenant.id,
         scanner_args={"key1": "value1", "key2": {"key21": "value21"}},
     )
+    provider6 = Provider.objects.create(
+        provider="m365",
+        uid="m365.test.com",
+        alias="m365_testing",
+        tenant_id=tenant.id,
+    )
 
-    return provider1, provider2, provider3, provider4, provider5
+    return provider1, provider2, provider3, provider4, provider5, provider6
 
 
 @pytest.fixture