Fix to ensure org auditors can see team credentials

#3081

awx/main/models/credential.py

@@ -87,6 +87,11 @@ class Credential(PasswordFieldsModel, CommonModelNameNotUnique, ResourceMixin):
         on_delete=models.CASCADE,
         related_name='credentials',
     )
+    teams = models.ManyToManyField(
+        'Team',
+        blank=True,
+        related_name='credentials',
+    )
     kind = models.CharField(
         max_length=32,
         choices=KIND_CHOICES,
@@ -226,6 +231,7 @@ class Credential(PasswordFieldsModel, CommonModelNameNotUnique, ResourceMixin):
     read_role = ImplicitRoleField(parent_role=[
         'singleton:' + ROLE_SINGLETON_SYSTEM_AUDITOR,
         'organization.auditor_role',
+        'teams.auditor_role',
         'use_role',
         'admin_role',
     ])