Change: Move SortOrder to pontos.github.model.base

SortOrder is either desc or asc and can be used at several places in the
GitHub API. Therefore it is a base model class.

pontos/github/models/base.py

@@ -27,6 +27,7 @@
     "FileStatus",
     "GitHubModel",
     "Permission",
+    "SortOrder",
     "Team",
     "TeamPrivacy",
     "TeamRole",
@@ -306,3 +307,16 @@ class Event(Enum):
     WORKFLOW_CALL = "workflow_call"
     WORKFLOW_DISPATCH = "workflow_dispatch"
     WORKFLOW_RUN = "workflow_run"
+
+
+class SortOrder(Enum):
+    """
+    Sort order: asc or desc
+
+    Attributes:
+        ASC: Use ascending sort order
+        DESC: Use descending sort order
+    """
+
+    ASC = "asc"
+    DESC = "desc"

pontos/github/models/search.py

@@ -15,6 +15,12 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+
+from abc import ABC
+from enum import Enum
+
+from .base import SortOrder
+
 __all__ = (
     "InDescriptionQualifier",
     "InNameQualifier",
@@ -31,22 +37,6 @@
     "UserQualifier",
 )
 
-from abc import ABC
-from enum import Enum
-
-
-class SortOrder(Enum):
-    """
-    Sort order: asc or desc
-
-    Attributes:
-        ASC: Use ascending sort order
-        DESC: Use descending sort order
-    """
-
-    ASC = "asc"
-    DESC = "desc"
-
 
 class RepositorySort(Enum):
     """