Update poetry to 2.1.3 (#586)

Author: cthoyt

.github/workflows/deploy-docs.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Install Poetry
       uses: snok/install-poetry@v1
       with:
-        version: 1.6.1
+        version: 2.1.3
 
     - name: Install dependencies.
       run: |

.github/workflows/pypi-publish.yml

@@ -19,7 +19,7 @@ jobs:
           python-version: 3.9
 
       - name: Install Poetry
-        run: pip install poetry
+        run: pip install poetry==2.1.3
 
       - name: Install dependencies
         run: poetry install --no-interaction

.github/workflows/qc.yml

@@ -28,7 +28,7 @@ jobs:
       - name: Install Poetry
         uses: snok/install-poetry@v1
         with:
-          version: 1.6.1
+          version: 2.1.3
 
       - name: Windows specific step.
         if: matrix.os == 'windows-latest'