Add limit parameter so workflows are not skipped if they don't fit the
default limit 10. Add more workflows to clean up after recent updates.
Signed-off-by: David Sterba <dsterba@suse.com>
Add helper scripts to build static binaries manually or clean old runs.
Requires the 'gh' command line tool and write access the git repository.
Signed-off-by: David Sterba <dsterba@suse.com>