libbtrfsutil: bump btrfsutil version, add release steps

[ ci skip ]

Issue: #310
Signed-off-by: David Sterba <dsterba@suse.com>

Documentation/dev/ReleaseChecklist.rst

@@ -27,6 +27,17 @@ Pre-release:
 
 *  write CHANGES entry (will be visible on RTD right away)
 
+Python btrfsutil (pypi.org):
+
+*  rebuild whole project (regenerate constants.c)
+*  ``cd libbtrfsutil/python``
+*  edit ``setup.py`` version manually (the toplevel VERSION is not accessible
+   during dist build)
+*  ``python3 -m build`` -- build dist files
+*  ``twine check dist/*.tar.gz`` -- look for warnings
+*  ``twine upload dist/*.tar.gz`` -- make sure there's only the latest version,
+   *twine* must need access token to pypi.org
+
 Release:
 
 *  tag release, sign

libbtrfsutil/python/setup.py

@@ -109,7 +109,7 @@ setup(
     name='btrfsutil',
     # FIXME: version file is not present when building outside of git
     #version=get_version(),
-    version='6.10',
+    version='6.11',
     description='Library for managing Btrfs filesystems',
     url='https://github.com/kdave/btrfs-progs',
     license='LGPLv2+',