libbtrfsutil: fix exception type in setup.py

CodeQL reports that the exception type is missing and falls back to the
BaseException. The recommended fix is to use Exception type as this will
behave the same but avoids using the base type.

[ci skip]

Signed-off-by: David Sterba <dsterba@suse.com>

Author: kdave

libbtrfsutil/python/setup.py

@@ -30,7 +30,7 @@ def get_version():
     try:
         import version
         version = version.btrfs_util_py_version
-    except:
+    except Exception:
         # Don't fail if this is only the 'clean' target or no command
         if 'clean' in sys.argv or len(sys.argv) == 1:
             version = '0.0'