Update checkout to v3

Author: bnmnetp

.github/workflows/python-app.yml

@@ -18,7 +18,7 @@ jobs:
             SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK }}
             SERVER_CONFIG: test
         steps:
-            -   uses: actions/checkout@v2
+            -   uses: actions/checkout@v3
                 with:
                     path: RunestoneServer
             -   name: Set up Python 3.10

tests/test_server.py

@@ -84,7 +84,7 @@ def test_killer(test_assignment, test_client, test_user_1, runestone_db_tools):
         # ----------------
         ("assignments/chooseAssignment", True, "Assignments", 2),
         ("assignments/doAssignment", True, "Bad Assignment ID", 2),
-        # ("assignments/practice", True, "access token", 1),
+        ("assignments/practice", True, "Practice", 1),
         ("assignments/practiceNotStartedYet", True, "test_course_1", 1),
         # **Default**
         # ------------