fix poetry install in ubuntu 24.04

.gitea/actions/poetrybuild/action.yaml

@@ -12,8 +12,10 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - name: Set PATH
+      run: export PATH=$PATH:~/.local/bin
     - name: Install poetry
-      run: pip install poetry
+      run: pipx install poetry
     - name: Install poetry package
       run: poetry install --no-interaction ${{ inputs.poetry_install_args }}
       shell: bash