refactor(galaxy): for dependent collections prefix with >= so as not to cause version lock

!53

galaxy.yml

@@ -44,9 +44,9 @@ tags:
 # L(specifiers,https://python-semanticversion.readthedocs.io/en/latest/#requirement-specification). Multiple version
 # range specifiers can be set and are separated by ','
 dependencies:
-  ansible.posix: '1.5.4'
-  kubernetes.core: '3.0.0'
-  nofusscomputing.firewall: '1.1.0'
+  ansible.posix: '>=1.5.4'
+  kubernetes.core: '>=3.0.0'
+  nofusscomputing.firewall: '>=1.1.0'
 
 
 # The URL of the originating SCM repository