update matrix collection to properly access value inside matrix Object

Author: SugatD

.github/workflows/ci.yml

@@ -51,7 +51,7 @@ jobs:
         bundle exec matrix_from_metadata_v3 --latest-agent
 
   Acceptance:
-    name: "${{matrix.platforms.label}}, ${{matrix.collection}}"
+    name: "${{matrix.platforms.label}}, ${{matrix.collection.collection}}"
     needs:
       - setup_matrix
     if: ${{ needs.setup_matrix.outputs.matrix != '{}' }}
@@ -94,7 +94,7 @@ jobs:
 
     - name: Install agent
       run: |
-        bundle exec rake 'litmus:install_agent[${{ matrix.collection }}]'
+        bundle exec rake 'litmus:install_agent[${{ matrix.collection.collection }}]'
 
     - name: Install module
       run: |