ubuntu-pro: add auto_enabled property for services

The JSON returned by uaclient for a status request contains the
auto_enabled property for each service. This property tells whether a
given service is enabled automatically when `ua attach` is done. We will
need this information going forward so we now include it in the success
response to /ubuntu_pro/check_token:

  {
    "status": "VALID_TOKEN",
    "services": [
      {
        "name": "esm-infra",
        "description": "UA Infra: Extended Security Maintenance (ESM)",
        "auto_enabled": true
      },
      {
        "name": "fips",
        "description": "NIST-certified core packages",
        "auto_enabled": false
      }
    ]
  }

Signed-off-by: Olivier Gayot <olivier.gayot@canonical.com>

subiquity/common/types.py

@@ -460,6 +460,7 @@ class UbuntuProCheckTokenStatus(enum.Enum):
 class UbuntuProService:
     name: str
     description: str
+    auto_enabled: bool
 
 
 @attr.s(auto_attribs=True)

subiquity/server/tests/test_ubuntu_advantage.py

@@ -191,18 +191,22 @@ class TestUAInterface(unittest.TestCase):
         self.assertIn(UbuntuProService(
             name="esm-infra",
             description="UA Infra: Extended Security Maintenance (ESM)",
+            auto_enabled=True,
         ), services)
         self.assertIn(UbuntuProService(
             name="fips",
             description="NIST-certified core packages",
+            auto_enabled=False,
         ), services)
         self.assertNotIn(UbuntuProService(
             name="esm-apps",
             description="UA Apps: Extended Security Maintenance (ESM)",
+            auto_enabled=True,
         ), services)
         self.assertNotIn(UbuntuProService(
             name="cis",
             description="Center for Internet Security Audit Tools",
+            auto_enabled=False,
         ), services)
 
         # Test with "Z" suffix for the expiration date.

subiquity/server/ubuntu_advantage.py

@@ -174,6 +174,7 @@ class UAInterface:
             return UbuntuProService(
                name=service["name"],
                description=service["description"],
+               auto_enabled=service["auto_enabled"] == "yes",
             )
 
         activable_services: List[UbuntuProService] = []