chore(tests): Update tiled to v0.2.12 (#1488)

Update policy for new tiled version
We are currently on
[v0.2.4](https://github.com/bluesky/tiled/blob/main/CHANGELOG.md#v024-2026-02-18)

Author: ZohebShaikh

tests/system_tests/compose.yaml

@@ -46,7 +46,7 @@ services:
       - label=disable
 
   tiled:
-    image: ghcr.io/bluesky/tiled:0.2.4
+    image: ghcr.io/bluesky/tiled:0.2.12
     network_mode: host # Port 8407
     environment:
       - PYTHONPATH=/deploy/

tests/system_tests/services/tiled_config/dls.py

@@ -33,10 +33,10 @@ def _check_principal(principal: Principal | None):
             detail="Principal is None",
             headers={"WWW-Authenticate": "Bearer"},
         )
-    if principal.type != PrincipalType.external:
+    if principal.type != PrincipalType.user:
         raise HTTPException(
             status_code=HTTP_401_UNAUTHORIZED,
-            detail=f"Principal of type {PrincipalType.external}"
+            detail=f"Principal of type {PrincipalType.user}"
             f" required but given {principal.type}",
             headers={"WWW-Authenticate": "Bearer"},
         )
@@ -121,7 +121,7 @@ def build_input(
 
         if (
             isinstance(principal, Principal)
-            and principal.type is PrincipalType.external
+            and principal.type is PrincipalType.user
             and principal.access_token is not None
         ):
             _input["token"] = principal.access_token.get_secret_value()