feat: simplify nightly version management

By pulling the version suffix from tutor, we avoid git conflicts when
merging the release branch in nightly.

setup.py

@@ -15,7 +15,7 @@ with io.open(
 
 setup(
     name="tutor-xqueue",
-    version=about["__package_version__"],
+    version=about["__version__"],
     url="https://docs.tutor.overhang.io/",
     project_urls={
         "Documentation": "https://docs.tutor.overhang.io/",

tutorxqueue/__about__.py

@@ -1,8 +1,2 @@
 __version__ = "16.0.2"
-__package_version__ = __version__
 
-# Handle version suffix for nightly, just like tutor core.
-__version_suffix__ = ""
-
-if __version_suffix__:
-    __version__ += "-" + __version_suffix__

tutorxqueue/plugin.py

@@ -10,11 +10,16 @@ import pkg_resources
 import requests
 
 from tutor import config as tutor_config
+from tutor.__about__ import __version_suffix__
 from tutor import exceptions
 from tutor import hooks as tutor_hooks
 
 from .__about__ import __version__
 
+# Handle version suffix in nightly mode, just like tutor core
+if __version_suffix__:
+    __version__ += "-" + __version_suffix__
+
 config = {
     "unique": {
         "AUTH_PASSWORD": "{{ 8|random_string }}",