ci:try PDM fix for hishel dep failure

Author: sr-murthy

.github/workflows/ci.yml

@@ -72,6 +72,7 @@ jobs:
       run: |
         python -m pip install pdm
         pdm info -v
+        python -m pip install --force-reinstall -v "hishel<1.0.0"
 
     - name: Lint + Run unit & acceptance tests + Measure code coverage
       run: |