[FEATURE] Check for package version to match git tag in release workflow

Author: Ferdia Soper Mac Cafraidh

.github/workflows/dispatch-release-pypi.yml

@@ -21,6 +21,12 @@ jobs:
       - name: Check out code
         uses: actions/checkout@v3
 
+      # grep exits with a non-zero exit code if a match is not found
+      - name: Check Library Version matches ${{ github.ref_name }}
+        id: check_version
+        run: |
+          grep "${{ github.ref_name }}" learnosity_sdk/_version.py
+
       - name: Set up Python
         uses: actions/setup-python@v2
         with: