ci: switch to install poetry action

.gitea/workflows/build.yml

@@ -20,8 +20,11 @@ jobs:
           python-version: "3.13.1"
           cache: "pip"
 
-      - name: Run setup script
-        run: .gitea/scripts/setup-poetry.sh
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1
+        with:
+          virtualenvs-create: false
+          installer-parallel: true
 
       - name: Check code formatting by black
         run: |

.gitea/workflows/publish.yml

@@ -19,8 +19,11 @@ jobs:
           python-version: "3.13.1"
           cache: "pip"
 
-      - name: Run setup script
-        run: .gitea/scripts/setup-poetry.sh
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1
+        with:
+          virtualenvs-create: false
+          installer-parallel: true
 
       - name: Build package
         run: poetry build