Revert "version updated to 0.9.0 (#537)" (#538)

This reverts commit 76ee183.

Author: sharabiani

src/xpk/core/config.py

@@ -22,7 +22,7 @@
 from ..utils.console import xpk_print
 
 # This is the version for XPK PyPI package
-__version__ = 'v0.9.0'
+__version__ = 'v0.8.0'
 XPK_CURRENT_VERSION = __version__
 XPK_CONFIG_FILE = os.path.expanduser('~/.config/xpk/config.yaml')