feat: remove Taxonomy.required, squash taxonomy migrations (#33438)

* feat: remove Taxonomy.required, make allow_multiple True by default

* chore: squash migrations

* fix: more robust migration

Co-authored-by: Jillian <jill@opencraft.com>

* chore: version bump, use squashed migration

---------

Co-authored-by: Jillian <jill@opencraft.com>

requirements/constraints.txt

@@ -121,7 +121,7 @@ libsass==0.10.0
 click==8.1.6
 
 # pinning this version to avoid updates while the library is being developed
-openedx-learning==0.2.0
+openedx-learning==0.2.3
 
 # lti-consumer-xblock 9.6.2 contains a breaking change that makes
 # existing custom parameter configurations unusable.

requirements/edx/base.txt

@@ -785,7 +785,7 @@ openedx-filters==1.6.0
     # via
     #   -r requirements/edx/kernel.in
     #   lti-consumer-xblock
-openedx-learning==0.2.0
+openedx-learning==0.2.3
     # via
     #   -c requirements/edx/../constraints.txt
     #   -r requirements/edx/kernel.in

requirements/edx/development.txt

@@ -1318,7 +1318,7 @@ openedx-filters==1.6.0
     #   -r requirements/edx/doc.txt
     #   -r requirements/edx/testing.txt
     #   lti-consumer-xblock
-openedx-learning==0.2.0
+openedx-learning==0.2.3
     # via
     #   -c requirements/edx/../constraints.txt
     #   -r requirements/edx/doc.txt

requirements/edx/doc.txt

@@ -925,7 +925,7 @@ openedx-filters==1.6.0
     # via
     #   -r requirements/edx/base.txt
     #   lti-consumer-xblock
-openedx-learning==0.2.0
+openedx-learning==0.2.3
     # via
     #   -c requirements/edx/../constraints.txt
     #   -r requirements/edx/base.txt

requirements/edx/testing.txt

@@ -992,7 +992,7 @@ openedx-filters==1.6.0
     # via
     #   -r requirements/edx/base.txt
     #   lti-consumer-xblock
-openedx-learning==0.2.0
+openedx-learning==0.2.3
     # via
     #   -c requirements/edx/../constraints.txt
     #   -r requirements/edx/base.txt