Update .github/workflows/workflow.yml

Author: ruivieira

.github/workflows/workflow.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ 3.10, 3.11, 3.12 ]
+        python-version: [ '3.10', '3.11', '3.12' ]
         java-version: [ 17 ]
         maven-version: [ '3.8.6' ]
     steps: