python 3.13 in workflows

.github/actions/bootstrap-poetry/action.yaml

@@ -8,9 +8,6 @@ inputs:
   python-latest:
     description: Use an uncached Python if a newer match is available
     default: 'false'
-  python-prereleases:
-    description: Allow usage of pre-release Python versions
-    default: 'false'
   poetry-spec:
     description: pip-compatible installation specification to use for Poetry
     default: 'poetry'
@@ -32,7 +29,7 @@ runs:
       with:
         python-version: ${{ inputs.python-version }}
         check-latest: ${{ inputs.python-latest == 'true' }}
-        allow-prereleases: ${{ inputs.python-prereleases == 'true' }}
+        allow-prereleases: true
         update-environment: false
 
     - run: >

.github/workflows/.tests-matrix.yaml

@@ -103,6 +103,12 @@ jobs:
         working-directory: poetry-plugin-export
         run: poetry add --lock --group dev ../poetry
 
+      # This step can be removed after having released a poetry-plugin-export version
+      # that has cffi>=1.17.0 in its lock file.
+      - name: Force more recent cffi (workaround for Python 3.13)
+        working-directory: poetry-plugin-export
+        run: poetry update --lock cffi
+
       - name: Install
         working-directory: poetry-plugin-export
         run: poetry install

.github/workflows/tests.yaml

@@ -123,7 +123,13 @@ jobs:
             image: windows-2022
           - name: macOS aarch64
             image: macos-14
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version:
+          - "3.8"
+          - "3.9"
+          - "3.10"
+          - "3.11"
+          - "3.12"
+          - "3.13"
       fail-fast: false
 
   status: