feat: Add the ability to easily update the plugin version.

Make the value of the pip target configurable so that we can update it
on the fly without having to re-build the plugin.

Author: feanil

plugins/tutor-contrib-ltistore/tutor_ltistore/patches/openedx-dockerfile-post-python-requirements

@@ -1,2 +1,2 @@
 RUN --mount=type=cache,target=/openedx/.cache/pip,sharing=shared \
-    pip install git+https://github.com/feanil/openedx-ltistore.git@feanil/lti1p3_fixes
+    pip install {{ LTISTORE_PIP_INSTALL }}

plugins/tutor-contrib-ltistore/tutor_ltistore/plugin.py

@@ -17,6 +17,12 @@
         # Each new setting is a pair: (setting_name, default_value).
         # Prefix your setting names with 'LTISTORE_'.
         ("LTISTORE_VERSION", __version__),
+        # It's useful to change this to git sources during development
+        # so we're making this a config value you can change.
+        (
+            "LTISTORE_PIP_INSTALL",
+            "git+https://github.com/feanil/openedx-ltistore.git@feanil/minimal_lti1p3_fixes",
+        ),
     ]
 )