revert poetry version back

Author: linglp

.github/workflows/pdoc.yml

@@ -27,7 +27,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     env:
-      POETRY_VERSION:  1.3.0
+      POETRY_VERSION:  1.2.0
     strategy:
       matrix:
         python-version: ["3.10"]