chore: Update main.yml

replacing hash with pypi versions.

playbooks/roles/edxapp/defaults/main.yml

@@ -573,14 +573,11 @@ EDXAPP_PRIVATE_REQUIREMENTS:
       extra_args: -e
     - name: git+https://github.com/openedx/xblock-in-video-quiz.git@a703acd9ef82434fc7ca2bc230496f45a584bb9a#egg=invideoquiz-xblock
       extra_args: -e
-    - name: git+https://github.com/openedx/xblock-submit-and-compare@39dd7f96b35affab5244880672da665a8adec332#egg=xblock-submit-and-compare
-      extra_args: -e
     - name: git+https://github.com/openedx/xblock-free-text-response@83a389e0a4b0a464e5d1e4a4a201678aed5eee9a#egg=xblock-free-text-response
       extra_args: -e
-    - name: git+https://github.com/openedx/xblock-sql-grader@5ae84bb9389bccacfb19a2444ef405a8eae93b13#egg=xblock-sql-grader
-      extra_args: -e
-    - name: git+https://github.com/openedx/xblock-image-modal@f280a623ae58886fb3d6b577802e9d59b04de585#egg=xblock-image-modal
-      extra_args: -e
+    - name: xblock-submit-and-compare==1.2.0
+    - name: xblock-sql-grader==0.4.0
+    - name: openedx-xblock-image-modal==3.1.0
     # XBlocks associated with the LabXchange project
     - name: git+https://github.com/open-craft/labxchange-xblocks.git@a0a8a8dad13199014d4bb29cee416289880bde0b#egg=labxchange-xblocks
       extra_args: -e