fix(apis): intermediate improvements ...

... it shows that the override I used previously won't work for `admin`.
Therefore we have to keep the actual value, instead of degenrating it.

Makes sense ... it's interesting how much one tends to hard-code things
to work just for a few cases, unless you opt in to see the whole picture

etc/api/api-list.yaml

@@ -8,6 +8,8 @@ api:
     adexchangeseller:
     - v2.0
     admin:
+    - directory_v1
+    - email_migration_v2
     - reports_v1
     adsense:
     - v1.4