Re-enable poetry binary caching with fix and more logging. (#10244)

- Revert "Temporarily disable step that seems to be transiently failing.
(#10234)"
- Refresh shell hashtable and show poetry/python location and version.

.github/actions/poetry_setup/action.yml

@@ -31,26 +31,36 @@ runs:
       with:
         python-version: ${{ inputs.python-version }}
 
-    # - uses: actions/cache@v3
-    #   id: cache-bin-poetry
-    #   name: Cache Poetry binary - Python ${{ inputs.python-version }}
-    #   env:
-    #     SEGMENT_DOWNLOAD_TIMEOUT_MIN: "1"
-    #   with:
-    #     path: |
-    #       /opt/pipx/venvs/poetry
-    #       /opt/pipx_bin/poetry
-    #     # This step caches the poetry installation, so make sure it's keyed on the poetry version as well.
-    #     key: bin-poetry-${{ runner.os }}-${{ runner.arch }}-py-${{ inputs.python-version }}-${{ inputs.poetry-version }}
+    - uses: actions/cache@v3
+      id: cache-bin-poetry
+      name: Cache Poetry binary - Python ${{ inputs.python-version }}
+      env:
+        SEGMENT_DOWNLOAD_TIMEOUT_MIN: "1"
+      with:
+        path: |
+          /opt/pipx/venvs/poetry
+          /opt/pipx_bin/poetry
+        # This step caches the poetry installation, so make sure it's keyed on the poetry version as well.
+        key: bin-poetry-${{ runner.os }}-${{ runner.arch }}-py-${{ inputs.python-version }}-${{ inputs.poetry-version }}
 
     - name: Install poetry
-      # if: steps.cache-bin-poetry.outputs.cache-hit != 'true'
+      if: steps.cache-bin-poetry.outputs.cache-hit != 'true'
       shell: bash
       env:
         POETRY_VERSION: ${{ inputs.poetry-version }}
         PYTHON_VERSION: ${{ inputs.python-version }}
       run: pipx install "poetry==$POETRY_VERSION" --python "python$PYTHON_VERSION" --verbose
 
+    - name: Refresh shell hashtable and show python/poetry binaries and versions
+      shell: bash
+      run: |
+        set -eux
+        hash -r
+        ls -alh /opt/pipx_bin/poetry
+        ls -alh /opt/pipx/venvs/poetry/bin/python
+        /opt/pipx/venvs/poetry/bin/python --version
+        /opt/pipx_bin/poetry --version
+
     - name: Restore pip and poetry cached dependencies
       uses: actions/cache@v3
       env: