update version

Author: FarahZKhan

cwltool/provenance.py

@@ -72,7 +72,7 @@ class PermissionError(OSError):  # pylint: disable=redefined-builtin
 # 2. Bump minor number if adding resources or PROV statements
 # 3. Bump patch number for non-breaking non-adding changes,
 #    e.g. fixing broken relative paths
-CWLPROV_VERSION = "https://w3id.org/cwl/prov/0.5.0"
+CWLPROV_VERSION = "https://w3id.org/cwl/prov/0.6.0"
 
 # Research Object folders
 METADATA = "metadata"