Fix Python version detection in GitHub Actions workflows

Co-authored-by: MauGx3 <225707+MauGx3@users.noreply.github.com>

Author: Copilot

.github/workflows/pyright.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.10]
+        python-version: ["3.10"]
         poetry-version: [1.3.2]
     steps:
       - name: Checkout repository

.github/workflows/pytest.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.10, 3.11]
+        python-version: ["3.10", "3.11"]
         poetry-version: [1.3.2]
     steps:
       - name: Checkout repository