💚 Fix workflow file

Author: phoenixr-codes

.github/workflows/docs.yml

@@ -24,7 +24,7 @@ jobs:
       matrix:
         python-version: ["3.13"]
         poetry-version: ["2.1.1"]
-        os: ubuntu-latest
+        os: ["ubuntu-latest"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4