update to latest ubiquerg

Author: nsheff

bulker/bulker.py

@@ -678,7 +678,8 @@ def host_tool_specific_args(bcfg, pkg, hosttool_arg_key):
         _LOGGER.info("Host commands available: {}".format(", ".join(host_cmdlist)))
 
 
-    bcfg.write()
+    with write_lock(bcfg) as locked_cfg:
+        locked_cfg.write()
 
 def bulker_activate(bulker_config, cratelist, echo=False, strict=False, prompt=True):
     """

requirements/requirements-all.txt

@@ -2,5 +2,5 @@ yacman>=0.9.5
 pyyaml>=5.1
 logmuse>=0.2.0
 jinja2
-ubiquerg>=0.5.1
+ubiquerg>=0.9.0
 psutil