[#4280] improvement(PyGVFS): Refactor the getFileLocation logic in …

…the Python GVFS (#5026)

### What changes were proposed in this pull request?

Refactor the logic of getting the file location in Python GVFS.

### Why are the changes needed?

Fix: #4280 

### How was this patch tested?

Refactor the UTs and reserved ITs works well.

clients/client-python/gravitino/audit/fileset_data_operation.py

@@ -28,6 +28,14 @@ class FilesetDataOperation(Enum):
     """Opens a file.
     """
 
+    OPEN_AND_WRITE = "OPEN_AND_WRITE"
+    """Opens a file and writes to it.
+    """
+
+    OPEN_AND_APPEND = "OPEN_AND_APPEND"
+    """Opens a file and appends to it.
+    """
+
     APPEND = "APPEND"
     """Appends some content into a file.
     """